./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+nlh-reducer.c --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/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+nlh-reducer.c -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 2164ea7ff9e119435a975a3ff24098e6247a3cb559bae891b283444f40f36a64 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 04:01:33,145 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 04:01:33,207 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 04:01:33,212 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 04:01:33,214 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 04:01:33,233 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 04:01:33,234 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 04:01:33,234 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 04:01:33,235 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 04:01:33,237 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 04:01:33,238 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 04:01:33,238 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 04:01:33,238 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 04:01:33,239 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 04:01:33,240 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 04:01:33,240 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 04:01:33,240 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 04:01:33,240 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 04:01:33,240 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 04:01:33,240 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 04:01:33,241 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 04:01:33,241 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 04:01:33,241 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 04:01:33,241 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 04:01:33,242 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 04:01:33,242 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 04:01:33,242 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 04:01:33,243 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 04:01:33,243 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 04:01:33,243 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 04:01:33,243 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 04:01:33,243 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 04:01:33,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:01:33,244 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 04:01:33,244 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 04:01:33,244 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 04:01:33,245 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 04:01:33,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 04:01:33,245 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 04:01:33,245 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 04:01:33,245 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 04:01:33,246 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 04:01:33,246 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2164ea7ff9e119435a975a3ff24098e6247a3cb559bae891b283444f40f36a64 [2024-10-14 04:01:33,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 04:01:33,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 04:01:33,459 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 04:01:33,459 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 04:01:33,460 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 04:01:33,461 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+nlh-reducer.c [2024-10-14 04:01:34,697 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 04:01:34,898 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 04:01:34,898 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+nlh-reducer.c [2024-10-14 04:01:34,913 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d37a0380/be38cc3ae08d4d388f08fc4bfbb6ace7/FLAGcb58833f5 [2024-10-14 04:01:34,923 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d37a0380/be38cc3ae08d4d388f08fc4bfbb6ace7 [2024-10-14 04:01:34,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 04:01:34,927 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 04:01:34,929 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 04:01:34,929 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 04:01:34,933 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 04:01:34,933 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:01:34" (1/1) ... [2024-10-14 04:01:34,934 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a76af90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:34, skipping insertion in model container [2024-10-14 04:01:34,934 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:01:34" (1/1) ... [2024-10-14 04:01:34,966 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 04:01:35,169 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/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+nlh-reducer.c[11829,11842] [2024-10-14 04:01:35,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:01:35,234 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 04:01:35,336 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/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+nlh-reducer.c[11829,11842] [2024-10-14 04:01:35,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:01:35,381 INFO L204 MainTranslator]: Completed translation [2024-10-14 04:01:35,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:35 WrapperNode [2024-10-14 04:01:35,382 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 04:01:35,383 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 04:01:35,383 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 04:01:35,383 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 04:01:35,388 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:35" (1/1) ... [2024-10-14 04:01:35,403 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:35" (1/1) ... [2024-10-14 04:01:35,445 INFO L138 Inliner]: procedures = 27, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1048 [2024-10-14 04:01:35,446 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 04:01:35,446 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 04:01:35,446 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 04:01:35,446 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 04:01:35,460 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:35" (1/1) ... [2024-10-14 04:01:35,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:35" (1/1) ... [2024-10-14 04:01:35,464 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:35" (1/1) ... [2024-10-14 04:01:35,481 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 04:01:35,482 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:35" (1/1) ... [2024-10-14 04:01:35,482 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:35" (1/1) ... [2024-10-14 04:01:35,494 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:35" (1/1) ... [2024-10-14 04:01:35,500 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:35" (1/1) ... [2024-10-14 04:01:35,505 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:35" (1/1) ... [2024-10-14 04:01:35,508 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:35" (1/1) ... [2024-10-14 04:01:35,511 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 04:01:35,512 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 04:01:35,512 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 04:01:35,512 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 04:01:35,513 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:35" (1/1) ... [2024-10-14 04:01:35,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:01:35,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:01:35,558 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 04:01:35,564 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 04:01:35,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 04:01:35,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 04:01:35,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 04:01:35,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 04:01:35,721 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 04:01:35,722 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 04:01:36,428 INFO L? ?]: Removed 120 outVars from TransFormulas that were not future-live. [2024-10-14 04:01:36,429 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 04:01:36,462 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 04:01:36,462 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 04:01:36,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:01:36 BoogieIcfgContainer [2024-10-14 04:01:36,463 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 04:01:36,464 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 04:01:36,464 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 04:01:36,468 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 04:01:36,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:01:34" (1/3) ... [2024-10-14 04:01:36,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5229468e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:01:36, skipping insertion in model container [2024-10-14 04:01:36,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:01:35" (2/3) ... [2024-10-14 04:01:36,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5229468e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:01:36, skipping insertion in model container [2024-10-14 04:01:36,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:01:36" (3/3) ... [2024-10-14 04:01:36,470 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+nlh-reducer.c [2024-10-14 04:01:36,493 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 04:01:36,494 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 04:01:36,559 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 04:01:36,566 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;@5f324438, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 04:01:36,567 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 04:01:36,573 INFO L276 IsEmpty]: Start isEmpty. Operand has 230 states, 228 states have (on average 1.7763157894736843) internal successors, (405), 229 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:36,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-14 04:01:36,583 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:36,583 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:36,584 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:36,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:36,588 INFO L85 PathProgramCache]: Analyzing trace with hash 2062089853, now seen corresponding path program 1 times [2024-10-14 04:01:36,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:36,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136167919] [2024-10-14 04:01:36,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:36,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:36,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:37,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:37,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:37,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136167919] [2024-10-14 04:01:37,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136167919] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:37,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:37,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 04:01:37,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756011538] [2024-10-14 04:01:37,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:37,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 04:01:37,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:37,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 04:01:37,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 04:01:37,372 INFO L87 Difference]: Start difference. First operand has 230 states, 228 states have (on average 1.7763157894736843) internal successors, (405), 229 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:38,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:38,067 INFO L93 Difference]: Finished difference Result 1830 states and 2953 transitions. [2024-10-14 04:01:38,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 04:01:38,070 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2024-10-14 04:01:38,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:38,090 INFO L225 Difference]: With dead ends: 1830 [2024-10-14 04:01:38,090 INFO L226 Difference]: Without dead ends: 1705 [2024-10-14 04:01:38,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-10-14 04:01:38,097 INFO L432 NwaCegarLoop]: 984 mSDtfsCounter, 3823 mSDsluCounter, 7142 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3823 SdHoareTripleChecker+Valid, 8126 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:38,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3823 Valid, 8126 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 04:01:38,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2024-10-14 04:01:38,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 348. [2024-10-14 04:01:38,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 347 states have (on average 1.440922190201729) internal successors, (500), 347 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:38,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 500 transitions. [2024-10-14 04:01:38,165 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 500 transitions. Word has length 124 [2024-10-14 04:01:38,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:38,166 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 500 transitions. [2024-10-14 04:01:38,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:38,166 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 500 transitions. [2024-10-14 04:01:38,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-14 04:01:38,168 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:38,168 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:38,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 04:01:38,168 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:38,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:38,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1719129492, now seen corresponding path program 1 times [2024-10-14 04:01:38,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:38,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376114774] [2024-10-14 04:01:38,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:38,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:38,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:38,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:38,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376114774] [2024-10-14 04:01:38,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376114774] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:38,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:38,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 04:01:38,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191885873] [2024-10-14 04:01:38,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:38,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 04:01:38,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:38,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 04:01:38,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-14 04:01:38,488 INFO L87 Difference]: Start difference. First operand 348 states and 500 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:38,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:38,816 INFO L93 Difference]: Finished difference Result 1960 states and 3048 transitions. [2024-10-14 04:01:38,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 04:01:38,817 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-10-14 04:01:38,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:38,824 INFO L225 Difference]: With dead ends: 1960 [2024-10-14 04:01:38,824 INFO L226 Difference]: Without dead ends: 1780 [2024-10-14 04:01:38,825 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:01:38,826 INFO L432 NwaCegarLoop]: 956 mSDtfsCounter, 2716 mSDsluCounter, 3533 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2716 SdHoareTripleChecker+Valid, 4489 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:38,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2716 Valid, 4489 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:01:38,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1780 states. [2024-10-14 04:01:38,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1780 to 552. [2024-10-14 04:01:38,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 551 states have (on average 1.4954627949183303) internal successors, (824), 551 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:38,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 824 transitions. [2024-10-14 04:01:38,864 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 824 transitions. Word has length 126 [2024-10-14 04:01:38,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:38,865 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 824 transitions. [2024-10-14 04:01:38,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:38,865 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 824 transitions. [2024-10-14 04:01:38,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-14 04:01:38,868 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:38,869 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:38,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 04:01:38,869 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:38,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:38,869 INFO L85 PathProgramCache]: Analyzing trace with hash 408412928, now seen corresponding path program 1 times [2024-10-14 04:01:38,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:38,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987720813] [2024-10-14 04:01:38,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:38,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:38,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:39,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:39,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:39,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987720813] [2024-10-14 04:01:39,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987720813] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:39,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:39,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 04:01:39,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389688830] [2024-10-14 04:01:39,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:39,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 04:01:39,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:39,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 04:01:39,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-14 04:01:39,193 INFO L87 Difference]: Start difference. First operand 552 states and 824 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:39,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:39,473 INFO L93 Difference]: Finished difference Result 2164 states and 3372 transitions. [2024-10-14 04:01:39,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 04:01:39,474 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-10-14 04:01:39,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:39,479 INFO L225 Difference]: With dead ends: 2164 [2024-10-14 04:01:39,479 INFO L226 Difference]: Without dead ends: 1984 [2024-10-14 04:01:39,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:01:39,481 INFO L432 NwaCegarLoop]: 824 mSDtfsCounter, 2884 mSDsluCounter, 2694 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2884 SdHoareTripleChecker+Valid, 3518 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:39,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2884 Valid, 3518 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:01:39,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1984 states. [2024-10-14 04:01:39,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1984 to 840. [2024-10-14 04:01:39,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 839 states have (on average 1.5268176400476758) internal successors, (1281), 839 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:39,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1281 transitions. [2024-10-14 04:01:39,499 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1281 transitions. Word has length 126 [2024-10-14 04:01:39,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:39,499 INFO L471 AbstractCegarLoop]: Abstraction has 840 states and 1281 transitions. [2024-10-14 04:01:39,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:39,500 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1281 transitions. [2024-10-14 04:01:39,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-14 04:01:39,501 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:39,501 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:39,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 04:01:39,501 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:39,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:39,502 INFO L85 PathProgramCache]: Analyzing trace with hash 712902436, now seen corresponding path program 1 times [2024-10-14 04:01:39,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:39,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786308156] [2024-10-14 04:01:39,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:39,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:39,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:39,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:39,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786308156] [2024-10-14 04:01:39,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786308156] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:39,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:39,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 04:01:39,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825989990] [2024-10-14 04:01:39,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:39,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 04:01:39,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:39,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 04:01:39,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-14 04:01:39,718 INFO L87 Difference]: Start difference. First operand 840 states and 1281 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:39,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:39,984 INFO L93 Difference]: Finished difference Result 2358 states and 3680 transitions. [2024-10-14 04:01:39,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 04:01:39,985 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-10-14 04:01:39,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:39,989 INFO L225 Difference]: With dead ends: 2358 [2024-10-14 04:01:39,990 INFO L226 Difference]: Without dead ends: 2178 [2024-10-14 04:01:39,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:01:39,995 INFO L432 NwaCegarLoop]: 699 mSDtfsCounter, 3477 mSDsluCounter, 2357 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3477 SdHoareTripleChecker+Valid, 3056 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:39,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3477 Valid, 3056 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:01:39,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2178 states. [2024-10-14 04:01:40,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2178 to 1034. [2024-10-14 04:01:40,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 1033 states have (on average 1.5382381413359147) internal successors, (1589), 1033 states have internal predecessors, (1589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:40,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1589 transitions. [2024-10-14 04:01:40,018 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1589 transitions. Word has length 126 [2024-10-14 04:01:40,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:40,019 INFO L471 AbstractCegarLoop]: Abstraction has 1034 states and 1589 transitions. [2024-10-14 04:01:40,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:40,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1589 transitions. [2024-10-14 04:01:40,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-14 04:01:40,020 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:40,020 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:40,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 04:01:40,020 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:40,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:40,021 INFO L85 PathProgramCache]: Analyzing trace with hash 2064741336, now seen corresponding path program 1 times [2024-10-14 04:01:40,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:40,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597127421] [2024-10-14 04:01:40,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:40,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:40,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:40,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:40,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:40,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597127421] [2024-10-14 04:01:40,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597127421] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:40,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:40,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 04:01:40,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227295252] [2024-10-14 04:01:40,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:40,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 04:01:40,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:40,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 04:01:40,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-14 04:01:40,263 INFO L87 Difference]: Start difference. First operand 1034 states and 1589 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:40,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:40,545 INFO L93 Difference]: Finished difference Result 2547 states and 3980 transitions. [2024-10-14 04:01:40,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 04:01:40,545 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-10-14 04:01:40,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:40,551 INFO L225 Difference]: With dead ends: 2547 [2024-10-14 04:01:40,551 INFO L226 Difference]: Without dead ends: 2367 [2024-10-14 04:01:40,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:01:40,552 INFO L432 NwaCegarLoop]: 558 mSDtfsCounter, 3799 mSDsluCounter, 2730 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3799 SdHoareTripleChecker+Valid, 3288 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:40,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3799 Valid, 3288 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:01:40,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2367 states. [2024-10-14 04:01:40,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2367 to 1213. [2024-10-14 04:01:40,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1213 states, 1212 states have (on average 1.5453795379537953) internal successors, (1873), 1212 states have internal predecessors, (1873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:40,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1213 states to 1213 states and 1873 transitions. [2024-10-14 04:01:40,574 INFO L78 Accepts]: Start accepts. Automaton has 1213 states and 1873 transitions. Word has length 126 [2024-10-14 04:01:40,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:40,574 INFO L471 AbstractCegarLoop]: Abstraction has 1213 states and 1873 transitions. [2024-10-14 04:01:40,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:40,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1213 states and 1873 transitions. [2024-10-14 04:01:40,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-14 04:01:40,575 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:40,575 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:40,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 04:01:40,575 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:40,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:40,576 INFO L85 PathProgramCache]: Analyzing trace with hash -415974754, now seen corresponding path program 1 times [2024-10-14 04:01:40,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:40,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12938083] [2024-10-14 04:01:40,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:40,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:40,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:40,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:40,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:40,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12938083] [2024-10-14 04:01:40,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12938083] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:40,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:40,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 04:01:40,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315363079] [2024-10-14 04:01:40,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:40,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 04:01:40,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:40,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 04:01:40,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-14 04:01:40,777 INFO L87 Difference]: Start difference. First operand 1213 states and 1873 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:41,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:41,049 INFO L93 Difference]: Finished difference Result 2725 states and 4263 transitions. [2024-10-14 04:01:41,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 04:01:41,049 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-10-14 04:01:41,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:41,058 INFO L225 Difference]: With dead ends: 2725 [2024-10-14 04:01:41,058 INFO L226 Difference]: Without dead ends: 2545 [2024-10-14 04:01:41,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:01:41,060 INFO L432 NwaCegarLoop]: 440 mSDtfsCounter, 3938 mSDsluCounter, 2711 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3938 SdHoareTripleChecker+Valid, 3151 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:41,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3938 Valid, 3151 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:01:41,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2545 states. [2024-10-14 04:01:41,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2545 to 1391. [2024-10-14 04:01:41,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1391 states, 1390 states have (on average 1.5510791366906476) internal successors, (2156), 1390 states have internal predecessors, (2156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:41,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 2156 transitions. [2024-10-14 04:01:41,090 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 2156 transitions. Word has length 126 [2024-10-14 04:01:41,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:41,090 INFO L471 AbstractCegarLoop]: Abstraction has 1391 states and 2156 transitions. [2024-10-14 04:01:41,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:41,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 2156 transitions. [2024-10-14 04:01:41,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-14 04:01:41,091 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:41,091 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:41,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 04:01:41,091 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:41,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:41,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1877396967, now seen corresponding path program 1 times [2024-10-14 04:01:41,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:41,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956802461] [2024-10-14 04:01:41,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:41,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:41,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:41,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:41,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:41,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956802461] [2024-10-14 04:01:41,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956802461] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:41,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:41,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 04:01:41,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910296013] [2024-10-14 04:01:41,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:41,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 04:01:41,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:41,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 04:01:41,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-14 04:01:41,485 INFO L87 Difference]: Start difference. First operand 1391 states and 2156 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:41,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:41,851 INFO L93 Difference]: Finished difference Result 2552 states and 3998 transitions. [2024-10-14 04:01:41,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 04:01:41,852 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-10-14 04:01:41,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:41,855 INFO L225 Difference]: With dead ends: 2552 [2024-10-14 04:01:41,855 INFO L226 Difference]: Without dead ends: 1393 [2024-10-14 04:01:41,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:01:41,858 INFO L432 NwaCegarLoop]: 297 mSDtfsCounter, 1104 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 1588 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:41,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1104 Valid, 1588 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:01:41,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2024-10-14 04:01:41,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1391. [2024-10-14 04:01:41,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1391 states, 1390 states have (on average 1.5460431654676259) internal successors, (2149), 1390 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:41,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 2149 transitions. [2024-10-14 04:01:41,878 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 2149 transitions. Word has length 126 [2024-10-14 04:01:41,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:41,878 INFO L471 AbstractCegarLoop]: Abstraction has 1391 states and 2149 transitions. [2024-10-14 04:01:41,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:41,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 2149 transitions. [2024-10-14 04:01:41,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-14 04:01:41,879 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:41,879 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:41,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 04:01:41,880 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:41,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:41,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1598046760, now seen corresponding path program 1 times [2024-10-14 04:01:41,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:41,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321509802] [2024-10-14 04:01:41,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:41,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:41,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:41,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:41,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321509802] [2024-10-14 04:01:41,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321509802] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:41,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:41,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:01:41,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54667560] [2024-10-14 04:01:41,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:41,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:01:41,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:41,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:01:41,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:01:41,945 INFO L87 Difference]: Start difference. First operand 1391 states and 2149 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:41,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:41,969 INFO L93 Difference]: Finished difference Result 3625 states and 5676 transitions. [2024-10-14 04:01:41,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:01:41,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-10-14 04:01:41,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:41,975 INFO L225 Difference]: With dead ends: 3625 [2024-10-14 04:01:41,975 INFO L226 Difference]: Without dead ends: 2466 [2024-10-14 04:01:41,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:01:41,977 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 131 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:41,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 734 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:01:41,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2466 states. [2024-10-14 04:01:41,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2466 to 2464. [2024-10-14 04:01:42,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2464 states, 2463 states have (on average 1.5489240763296792) internal successors, (3815), 2463 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:42,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2464 states to 2464 states and 3815 transitions. [2024-10-14 04:01:42,004 INFO L78 Accepts]: Start accepts. Automaton has 2464 states and 3815 transitions. Word has length 126 [2024-10-14 04:01:42,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:42,005 INFO L471 AbstractCegarLoop]: Abstraction has 2464 states and 3815 transitions. [2024-10-14 04:01:42,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:42,005 INFO L276 IsEmpty]: Start isEmpty. Operand 2464 states and 3815 transitions. [2024-10-14 04:01:42,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-14 04:01:42,006 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:42,006 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:42,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 04:01:42,006 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:42,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:42,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1049364152, now seen corresponding path program 1 times [2024-10-14 04:01:42,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:42,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742585167] [2024-10-14 04:01:42,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:42,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:42,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:42,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:42,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742585167] [2024-10-14 04:01:42,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742585167] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:42,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:42,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 04:01:42,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524734025] [2024-10-14 04:01:42,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:42,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 04:01:42,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:42,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 04:01:42,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-14 04:01:42,211 INFO L87 Difference]: Start difference. First operand 2464 states and 3815 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:42,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:42,464 INFO L93 Difference]: Finished difference Result 5297 states and 8254 transitions. [2024-10-14 04:01:42,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 04:01:42,464 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-10-14 04:01:42,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:42,477 INFO L225 Difference]: With dead ends: 5297 [2024-10-14 04:01:42,477 INFO L226 Difference]: Without dead ends: 4952 [2024-10-14 04:01:42,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:01:42,479 INFO L432 NwaCegarLoop]: 567 mSDtfsCounter, 2943 mSDsluCounter, 2940 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2943 SdHoareTripleChecker+Valid, 3507 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:42,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2943 Valid, 3507 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:01:42,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4952 states. [2024-10-14 04:01:42,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4952 to 2813. [2024-10-14 04:01:42,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2813 states, 2812 states have (on average 1.5512091038406828) internal successors, (4362), 2812 states have internal predecessors, (4362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:42,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2813 states to 2813 states and 4362 transitions. [2024-10-14 04:01:42,519 INFO L78 Accepts]: Start accepts. Automaton has 2813 states and 4362 transitions. Word has length 126 [2024-10-14 04:01:42,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:42,519 INFO L471 AbstractCegarLoop]: Abstraction has 2813 states and 4362 transitions. [2024-10-14 04:01:42,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:42,520 INFO L276 IsEmpty]: Start isEmpty. Operand 2813 states and 4362 transitions. [2024-10-14 04:01:42,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-14 04:01:42,520 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:42,521 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:42,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 04:01:42,521 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:42,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:42,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1053228436, now seen corresponding path program 1 times [2024-10-14 04:01:42,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:42,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63680604] [2024-10-14 04:01:42,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:42,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:42,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:42,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:42,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:42,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63680604] [2024-10-14 04:01:42,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63680604] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:42,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:42,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 04:01:42,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120856550] [2024-10-14 04:01:42,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:42,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 04:01:42,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:42,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 04:01:42,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-14 04:01:42,724 INFO L87 Difference]: Start difference. First operand 2813 states and 4362 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:42,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:42,963 INFO L93 Difference]: Finished difference Result 5646 states and 8801 transitions. [2024-10-14 04:01:42,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 04:01:42,963 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-10-14 04:01:42,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:42,976 INFO L225 Difference]: With dead ends: 5646 [2024-10-14 04:01:42,976 INFO L226 Difference]: Without dead ends: 5301 [2024-10-14 04:01:42,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:01:42,978 INFO L432 NwaCegarLoop]: 575 mSDtfsCounter, 3046 mSDsluCounter, 3700 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3046 SdHoareTripleChecker+Valid, 4275 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:42,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3046 Valid, 4275 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:01:42,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5301 states. [2024-10-14 04:01:43,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5301 to 3167. [2024-10-14 04:01:43,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3167 states, 3166 states have (on average 1.553063802905875) internal successors, (4917), 3166 states have internal predecessors, (4917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:43,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3167 states to 3167 states and 4917 transitions. [2024-10-14 04:01:43,019 INFO L78 Accepts]: Start accepts. Automaton has 3167 states and 4917 transitions. Word has length 126 [2024-10-14 04:01:43,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:43,019 INFO L471 AbstractCegarLoop]: Abstraction has 3167 states and 4917 transitions. [2024-10-14 04:01:43,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:43,020 INFO L276 IsEmpty]: Start isEmpty. Operand 3167 states and 4917 transitions. [2024-10-14 04:01:43,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-14 04:01:43,021 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:43,021 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:43,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 04:01:43,021 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:43,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:43,021 INFO L85 PathProgramCache]: Analyzing trace with hash -816065136, now seen corresponding path program 1 times [2024-10-14 04:01:43,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:43,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902505926] [2024-10-14 04:01:43,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:43,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:43,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:43,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:43,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:43,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902505926] [2024-10-14 04:01:43,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902505926] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:43,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:43,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 04:01:43,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325637411] [2024-10-14 04:01:43,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:43,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 04:01:43,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:43,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 04:01:43,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-14 04:01:43,246 INFO L87 Difference]: Start difference. First operand 3167 states and 4917 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:43,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:43,500 INFO L93 Difference]: Finished difference Result 6010 states and 9372 transitions. [2024-10-14 04:01:43,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 04:01:43,500 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-10-14 04:01:43,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:43,509 INFO L225 Difference]: With dead ends: 6010 [2024-10-14 04:01:43,509 INFO L226 Difference]: Without dead ends: 5665 [2024-10-14 04:01:43,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:01:43,511 INFO L432 NwaCegarLoop]: 483 mSDtfsCounter, 3380 mSDsluCounter, 4107 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3380 SdHoareTripleChecker+Valid, 4590 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:43,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3380 Valid, 4590 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:01:43,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5665 states. [2024-10-14 04:01:43,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5665 to 3536. [2024-10-14 04:01:43,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3536 states, 3535 states have (on average 1.5547383309759548) internal successors, (5496), 3535 states have internal predecessors, (5496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:43,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3536 states to 3536 states and 5496 transitions. [2024-10-14 04:01:43,560 INFO L78 Accepts]: Start accepts. Automaton has 3536 states and 5496 transitions. Word has length 126 [2024-10-14 04:01:43,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:43,561 INFO L471 AbstractCegarLoop]: Abstraction has 3536 states and 5496 transitions. [2024-10-14 04:01:43,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:43,561 INFO L276 IsEmpty]: Start isEmpty. Operand 3536 states and 5496 transitions. [2024-10-14 04:01:43,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-14 04:01:43,562 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:43,562 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:43,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 04:01:43,562 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:43,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:43,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1932145280, now seen corresponding path program 1 times [2024-10-14 04:01:43,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:43,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812535065] [2024-10-14 04:01:43,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:43,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:43,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:43,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:43,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:43,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812535065] [2024-10-14 04:01:43,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812535065] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:43,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:43,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:01:43,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830556244] [2024-10-14 04:01:43,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:43,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:01:43,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:43,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:01:43,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:01:43,692 INFO L87 Difference]: Start difference. First operand 3536 states and 5496 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:43,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:43,839 INFO L93 Difference]: Finished difference Result 6989 states and 10904 transitions. [2024-10-14 04:01:43,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 04:01:43,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2024-10-14 04:01:43,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:43,844 INFO L225 Difference]: With dead ends: 6989 [2024-10-14 04:01:43,844 INFO L226 Difference]: Without dead ends: 3536 [2024-10-14 04:01:43,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 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 04:01:43,848 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 807 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:43,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 202 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:01:43,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3536 states. [2024-10-14 04:01:43,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3536 to 3536. [2024-10-14 04:01:43,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3536 states, 3535 states have (on average 1.5437057991513436) internal successors, (5457), 3535 states have internal predecessors, (5457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:43,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3536 states to 3536 states and 5457 transitions. [2024-10-14 04:01:43,902 INFO L78 Accepts]: Start accepts. Automaton has 3536 states and 5457 transitions. Word has length 127 [2024-10-14 04:01:43,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:43,902 INFO L471 AbstractCegarLoop]: Abstraction has 3536 states and 5457 transitions. [2024-10-14 04:01:43,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:43,902 INFO L276 IsEmpty]: Start isEmpty. Operand 3536 states and 5457 transitions. [2024-10-14 04:01:43,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-14 04:01:43,903 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:43,903 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:43,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 04:01:43,904 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:43,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:43,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1294612734, now seen corresponding path program 1 times [2024-10-14 04:01:43,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:43,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496953855] [2024-10-14 04:01:43,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:43,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:44,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:44,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:44,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496953855] [2024-10-14 04:01:44,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496953855] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:44,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:44,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:01:44,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858173577] [2024-10-14 04:01:44,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:44,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:01:44,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:44,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:01:44,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:01:44,014 INFO L87 Difference]: Start difference. First operand 3536 states and 5457 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:44,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:44,142 INFO L93 Difference]: Finished difference Result 6997 states and 10836 transitions. [2024-10-14 04:01:44,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 04:01:44,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2024-10-14 04:01:44,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:44,147 INFO L225 Difference]: With dead ends: 6997 [2024-10-14 04:01:44,147 INFO L226 Difference]: Without dead ends: 3536 [2024-10-14 04:01:44,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 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 04:01:44,151 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 823 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:44,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 186 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:01:44,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3536 states. [2024-10-14 04:01:44,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3536 to 3536. [2024-10-14 04:01:44,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3536 states, 3535 states have (on average 1.5326732673267327) internal successors, (5418), 3535 states have internal predecessors, (5418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:44,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3536 states to 3536 states and 5418 transitions. [2024-10-14 04:01:44,190 INFO L78 Accepts]: Start accepts. Automaton has 3536 states and 5418 transitions. Word has length 128 [2024-10-14 04:01:44,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:44,190 INFO L471 AbstractCegarLoop]: Abstraction has 3536 states and 5418 transitions. [2024-10-14 04:01:44,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:44,191 INFO L276 IsEmpty]: Start isEmpty. Operand 3536 states and 5418 transitions. [2024-10-14 04:01:44,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-14 04:01:44,192 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:44,192 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:44,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 04:01:44,192 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:44,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:44,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1111867712, now seen corresponding path program 1 times [2024-10-14 04:01:44,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:44,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727554499] [2024-10-14 04:01:44,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:44,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:44,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:44,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:44,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727554499] [2024-10-14 04:01:44,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727554499] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:44,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:44,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:01:44,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062066170] [2024-10-14 04:01:44,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:44,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:01:44,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:44,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:01:44,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:01:44,306 INFO L87 Difference]: Start difference. First operand 3536 states and 5418 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:44,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:44,438 INFO L93 Difference]: Finished difference Result 6993 states and 10754 transitions. [2024-10-14 04:01:44,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 04:01:44,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2024-10-14 04:01:44,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:44,443 INFO L225 Difference]: With dead ends: 6993 [2024-10-14 04:01:44,443 INFO L226 Difference]: Without dead ends: 3536 [2024-10-14 04:01:44,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 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 04:01:44,447 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 805 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:44,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 194 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:01:44,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3536 states. [2024-10-14 04:01:44,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3536 to 3536. [2024-10-14 04:01:44,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3536 states, 3535 states have (on average 1.5216407355021215) internal successors, (5379), 3535 states have internal predecessors, (5379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:44,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3536 states to 3536 states and 5379 transitions. [2024-10-14 04:01:44,476 INFO L78 Accepts]: Start accepts. Automaton has 3536 states and 5379 transitions. Word has length 129 [2024-10-14 04:01:44,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:44,476 INFO L471 AbstractCegarLoop]: Abstraction has 3536 states and 5379 transitions. [2024-10-14 04:01:44,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:44,476 INFO L276 IsEmpty]: Start isEmpty. Operand 3536 states and 5379 transitions. [2024-10-14 04:01:44,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-14 04:01:44,477 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:44,477 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:44,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 04:01:44,478 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:44,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:44,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1495691830, now seen corresponding path program 1 times [2024-10-14 04:01:44,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:44,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74214789] [2024-10-14 04:01:44,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:44,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:44,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:44,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:44,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:44,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74214789] [2024-10-14 04:01:44,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74214789] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:44,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:44,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:01:44,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213184079] [2024-10-14 04:01:44,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:44,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:01:44,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:44,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:01:44,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:01:44,559 INFO L87 Difference]: Start difference. First operand 3536 states and 5379 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:44,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:44,693 INFO L93 Difference]: Finished difference Result 7001 states and 10685 transitions. [2024-10-14 04:01:44,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 04:01:44,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2024-10-14 04:01:44,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:44,698 INFO L225 Difference]: With dead ends: 7001 [2024-10-14 04:01:44,698 INFO L226 Difference]: Without dead ends: 3536 [2024-10-14 04:01:44,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 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 04:01:44,701 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 822 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 822 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:44,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [822 Valid, 178 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:01:44,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3536 states. [2024-10-14 04:01:44,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3536 to 3536. [2024-10-14 04:01:44,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3536 states, 3535 states have (on average 1.5106082036775106) internal successors, (5340), 3535 states have internal predecessors, (5340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:44,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3536 states to 3536 states and 5340 transitions. [2024-10-14 04:01:44,731 INFO L78 Accepts]: Start accepts. Automaton has 3536 states and 5340 transitions. Word has length 130 [2024-10-14 04:01:44,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:44,732 INFO L471 AbstractCegarLoop]: Abstraction has 3536 states and 5340 transitions. [2024-10-14 04:01:44,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:44,732 INFO L276 IsEmpty]: Start isEmpty. Operand 3536 states and 5340 transitions. [2024-10-14 04:01:44,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-14 04:01:44,733 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:44,733 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:44,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 04:01:44,733 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:44,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:44,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1828244712, now seen corresponding path program 1 times [2024-10-14 04:01:44,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:44,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914135834] [2024-10-14 04:01:44,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:44,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:44,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:44,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:44,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:44,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914135834] [2024-10-14 04:01:44,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914135834] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:44,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:44,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:01:44,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893901421] [2024-10-14 04:01:44,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:44,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:01:44,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:44,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:01:44,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:01:44,829 INFO L87 Difference]: Start difference. First operand 3536 states and 5340 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:45,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:45,034 INFO L93 Difference]: Finished difference Result 10399 states and 15782 transitions. [2024-10-14 04:01:45,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 04:01:45,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2024-10-14 04:01:45,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:45,043 INFO L225 Difference]: With dead ends: 10399 [2024-10-14 04:01:45,043 INFO L226 Difference]: Without dead ends: 6930 [2024-10-14 04:01:45,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 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 04:01:45,047 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 1203 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:45,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1203 Valid, 270 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:01:45,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6930 states. [2024-10-14 04:01:45,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6930 to 6928. [2024-10-14 04:01:45,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6928 states, 6927 states have (on average 1.5114768297964487) internal successors, (10470), 6927 states have internal predecessors, (10470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:45,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6928 states to 6928 states and 10470 transitions. [2024-10-14 04:01:45,105 INFO L78 Accepts]: Start accepts. Automaton has 6928 states and 10470 transitions. Word has length 131 [2024-10-14 04:01:45,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:45,106 INFO L471 AbstractCegarLoop]: Abstraction has 6928 states and 10470 transitions. [2024-10-14 04:01:45,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:45,106 INFO L276 IsEmpty]: Start isEmpty. Operand 6928 states and 10470 transitions. [2024-10-14 04:01:45,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-14 04:01:45,107 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:45,107 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:45,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 04:01:45,108 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:45,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:45,108 INFO L85 PathProgramCache]: Analyzing trace with hash -2136324202, now seen corresponding path program 1 times [2024-10-14 04:01:45,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:45,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323477055] [2024-10-14 04:01:45,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:45,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:45,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:45,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:45,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:45,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323477055] [2024-10-14 04:01:45,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323477055] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:45,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:45,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:01:45,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979333494] [2024-10-14 04:01:45,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:45,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:01:45,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:45,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:01:45,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:01:45,200 INFO L87 Difference]: Start difference. First operand 6928 states and 10470 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:45,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:45,344 INFO L93 Difference]: Finished difference Result 13765 states and 20847 transitions. [2024-10-14 04:01:45,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 04:01:45,344 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2024-10-14 04:01:45,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:45,383 INFO L225 Difference]: With dead ends: 13765 [2024-10-14 04:01:45,383 INFO L226 Difference]: Without dead ends: 6928 [2024-10-14 04:01:45,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 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 04:01:45,388 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 753 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:45,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 218 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:01:45,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6928 states. [2024-10-14 04:01:45,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6928 to 6928. [2024-10-14 04:01:45,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6928 states, 6927 states have (on average 1.5003609065973726) internal successors, (10393), 6927 states have internal predecessors, (10393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:45,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6928 states to 6928 states and 10393 transitions. [2024-10-14 04:01:45,470 INFO L78 Accepts]: Start accepts. Automaton has 6928 states and 10393 transitions. Word has length 132 [2024-10-14 04:01:45,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:45,470 INFO L471 AbstractCegarLoop]: Abstraction has 6928 states and 10393 transitions. [2024-10-14 04:01:45,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:45,471 INFO L276 IsEmpty]: Start isEmpty. Operand 6928 states and 10393 transitions. [2024-10-14 04:01:45,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-14 04:01:45,472 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:45,473 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:45,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 04:01:45,473 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:45,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:45,473 INFO L85 PathProgramCache]: Analyzing trace with hash 519480744, now seen corresponding path program 1 times [2024-10-14 04:01:45,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:45,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595940880] [2024-10-14 04:01:45,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:45,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:45,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:45,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:45,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:45,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595940880] [2024-10-14 04:01:45,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595940880] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:45,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:45,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:01:45,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195682477] [2024-10-14 04:01:45,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:45,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:01:45,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:45,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:01:45,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:01:45,617 INFO L87 Difference]: Start difference. First operand 6928 states and 10393 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:45,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:45,753 INFO L93 Difference]: Finished difference Result 13769 states and 20698 transitions. [2024-10-14 04:01:45,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 04:01:45,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2024-10-14 04:01:45,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:45,761 INFO L225 Difference]: With dead ends: 13769 [2024-10-14 04:01:45,761 INFO L226 Difference]: Without dead ends: 6928 [2024-10-14 04:01:45,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 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 04:01:45,767 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 758 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:45,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 210 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:01:45,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6928 states. [2024-10-14 04:01:45,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6928 to 6928. [2024-10-14 04:01:45,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6928 states, 6927 states have (on average 1.4892449833982966) internal successors, (10316), 6927 states have internal predecessors, (10316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:45,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6928 states to 6928 states and 10316 transitions. [2024-10-14 04:01:45,826 INFO L78 Accepts]: Start accepts. Automaton has 6928 states and 10316 transitions. Word has length 133 [2024-10-14 04:01:45,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:45,826 INFO L471 AbstractCegarLoop]: Abstraction has 6928 states and 10316 transitions. [2024-10-14 04:01:45,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:45,826 INFO L276 IsEmpty]: Start isEmpty. Operand 6928 states and 10316 transitions. [2024-10-14 04:01:45,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-14 04:01:45,827 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:45,827 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:45,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 04:01:45,828 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:45,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:45,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1830670946, now seen corresponding path program 1 times [2024-10-14 04:01:45,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:45,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231788658] [2024-10-14 04:01:45,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:45,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:45,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:45,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:45,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231788658] [2024-10-14 04:01:45,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231788658] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:45,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:45,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:01:45,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522225378] [2024-10-14 04:01:45,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:45,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:01:45,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:45,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:01:45,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:01:45,951 INFO L87 Difference]: Start difference. First operand 6928 states and 10316 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:46,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:46,079 INFO L93 Difference]: Finished difference Result 13761 states and 20536 transitions. [2024-10-14 04:01:46,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 04:01:46,079 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2024-10-14 04:01:46,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:46,086 INFO L225 Difference]: With dead ends: 13761 [2024-10-14 04:01:46,087 INFO L226 Difference]: Without dead ends: 6928 [2024-10-14 04:01:46,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 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 04:01:46,093 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 729 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:46,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 230 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:01:46,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6928 states. [2024-10-14 04:01:46,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6928 to 6928. [2024-10-14 04:01:46,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6928 states, 6927 states have (on average 1.4781290601992205) internal successors, (10239), 6927 states have internal predecessors, (10239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:46,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6928 states to 6928 states and 10239 transitions. [2024-10-14 04:01:46,154 INFO L78 Accepts]: Start accepts. Automaton has 6928 states and 10239 transitions. Word has length 134 [2024-10-14 04:01:46,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:46,154 INFO L471 AbstractCegarLoop]: Abstraction has 6928 states and 10239 transitions. [2024-10-14 04:01:46,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:46,154 INFO L276 IsEmpty]: Start isEmpty. Operand 6928 states and 10239 transitions. [2024-10-14 04:01:46,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-14 04:01:46,156 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:46,156 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:46,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 04:01:46,156 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:46,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:46,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1024489040, now seen corresponding path program 1 times [2024-10-14 04:01:46,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:46,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198192011] [2024-10-14 04:01:46,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:46,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:46,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:46,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:46,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:46,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198192011] [2024-10-14 04:01:46,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198192011] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:46,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:46,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 04:01:46,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931984078] [2024-10-14 04:01:46,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:46,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:01:46,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:46,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:01:46,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:01:46,380 INFO L87 Difference]: Start difference. First operand 6928 states and 10239 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:46,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:46,416 INFO L93 Difference]: Finished difference Result 6966 states and 10294 transitions. [2024-10-14 04:01:46,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 04:01:46,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2024-10-14 04:01:46,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:46,461 INFO L225 Difference]: With dead ends: 6966 [2024-10-14 04:01:46,462 INFO L226 Difference]: Without dead ends: 6964 [2024-10-14 04:01:46,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:01:46,463 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 0 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:46,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1152 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:01:46,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6964 states. [2024-10-14 04:01:46,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6964 to 6964. [2024-10-14 04:01:46,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6964 states, 6963 states have (on average 1.4727847192302168) internal successors, (10255), 6963 states have internal predecessors, (10255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:46,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6964 states to 6964 states and 10255 transitions. [2024-10-14 04:01:46,517 INFO L78 Accepts]: Start accepts. Automaton has 6964 states and 10255 transitions. Word has length 135 [2024-10-14 04:01:46,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:46,518 INFO L471 AbstractCegarLoop]: Abstraction has 6964 states and 10255 transitions. [2024-10-14 04:01:46,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:46,518 INFO L276 IsEmpty]: Start isEmpty. Operand 6964 states and 10255 transitions. [2024-10-14 04:01:46,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-14 04:01:46,519 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:46,519 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:46,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 04:01:46,520 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:46,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:46,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1225397196, now seen corresponding path program 1 times [2024-10-14 04:01:46,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:46,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229983973] [2024-10-14 04:01:46,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:46,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:46,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:46,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:46,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:46,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229983973] [2024-10-14 04:01:46,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229983973] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:46,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:46,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 04:01:46,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97004119] [2024-10-14 04:01:46,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:46,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 04:01:46,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:46,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 04:01:46,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-14 04:01:46,913 INFO L87 Difference]: Start difference. First operand 6964 states and 10255 transitions. Second operand has 12 states, 12 states have (on average 11.25) internal successors, (135), 11 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:47,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:47,597 INFO L93 Difference]: Finished difference Result 20499 states and 30120 transitions. [2024-10-14 04:01:47,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:01:47,598 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.25) internal successors, (135), 11 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2024-10-14 04:01:47,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:47,610 INFO L225 Difference]: With dead ends: 20499 [2024-10-14 04:01:47,611 INFO L226 Difference]: Without dead ends: 13943 [2024-10-14 04:01:47,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2024-10-14 04:01:47,619 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 1246 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 996 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 1003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:47,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 1054 Invalid, 1003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 996 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 04:01:47,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13943 states. [2024-10-14 04:01:47,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13943 to 7015. [2024-10-14 04:01:47,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7015 states, 7014 states have (on average 1.471770744225834) internal successors, (10323), 7014 states have internal predecessors, (10323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:47,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7015 states to 7015 states and 10323 transitions. [2024-10-14 04:01:47,708 INFO L78 Accepts]: Start accepts. Automaton has 7015 states and 10323 transitions. Word has length 135 [2024-10-14 04:01:47,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:47,708 INFO L471 AbstractCegarLoop]: Abstraction has 7015 states and 10323 transitions. [2024-10-14 04:01:47,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.25) internal successors, (135), 11 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:47,708 INFO L276 IsEmpty]: Start isEmpty. Operand 7015 states and 10323 transitions. [2024-10-14 04:01:47,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-14 04:01:47,710 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:47,710 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:47,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 04:01:47,710 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:47,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:47,711 INFO L85 PathProgramCache]: Analyzing trace with hash -2122016475, now seen corresponding path program 1 times [2024-10-14 04:01:47,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:47,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119534338] [2024-10-14 04:01:47,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:47,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:47,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:48,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:48,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:48,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119534338] [2024-10-14 04:01:48,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119534338] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:48,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:48,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 04:01:48,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252798697] [2024-10-14 04:01:48,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:48,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 04:01:48,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:48,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 04:01:48,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-10-14 04:01:48,216 INFO L87 Difference]: Start difference. First operand 7015 states and 10323 transitions. Second operand has 13 states, 13 states have (on average 10.461538461538462) internal successors, (136), 12 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:48,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:48,963 INFO L93 Difference]: Finished difference Result 20986 states and 30769 transitions. [2024-10-14 04:01:48,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-14 04:01:48,965 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.461538461538462) internal successors, (136), 12 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2024-10-14 04:01:48,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:48,981 INFO L225 Difference]: With dead ends: 20986 [2024-10-14 04:01:48,981 INFO L226 Difference]: Without dead ends: 14248 [2024-10-14 04:01:48,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=151, Invalid=499, Unknown=0, NotChecked=0, Total=650 [2024-10-14 04:01:48,994 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 913 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:48,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 1075 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1055 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 04:01:49,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14248 states. [2024-10-14 04:01:49,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14248 to 7048. [2024-10-14 04:01:49,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7048 states, 7047 states have (on average 1.4708386547467007) internal successors, (10365), 7047 states have internal predecessors, (10365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:49,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7048 states to 7048 states and 10365 transitions. [2024-10-14 04:01:49,115 INFO L78 Accepts]: Start accepts. Automaton has 7048 states and 10365 transitions. Word has length 136 [2024-10-14 04:01:49,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:49,115 INFO L471 AbstractCegarLoop]: Abstraction has 7048 states and 10365 transitions. [2024-10-14 04:01:49,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.461538461538462) internal successors, (136), 12 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:49,115 INFO L276 IsEmpty]: Start isEmpty. Operand 7048 states and 10365 transitions. [2024-10-14 04:01:49,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-14 04:01:49,117 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:49,117 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:49,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 04:01:49,117 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:49,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:49,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1556391605, now seen corresponding path program 1 times [2024-10-14 04:01:49,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:49,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583546850] [2024-10-14 04:01:49,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:49,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:49,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:49,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:49,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:49,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583546850] [2024-10-14 04:01:49,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583546850] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:49,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:49,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 04:01:49,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31491244] [2024-10-14 04:01:49,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:49,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 04:01:49,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:49,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 04:01:49,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-14 04:01:49,486 INFO L87 Difference]: Start difference. First operand 7048 states and 10365 transitions. Second operand has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 11 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:50,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:50,125 INFO L93 Difference]: Finished difference Result 20497 states and 30117 transitions. [2024-10-14 04:01:50,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:01:50,126 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 11 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2024-10-14 04:01:50,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:50,138 INFO L225 Difference]: With dead ends: 20497 [2024-10-14 04:01:50,139 INFO L226 Difference]: Without dead ends: 13881 [2024-10-14 04:01:50,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2024-10-14 04:01:50,148 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 1200 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1200 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:50,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1200 Valid, 1063 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 993 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 04:01:50,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13881 states. [2024-10-14 04:01:50,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13881 to 7048. [2024-10-14 04:01:50,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7048 states, 7047 states have (on average 1.4687100893997447) internal successors, (10350), 7047 states have internal predecessors, (10350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:50,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7048 states to 7048 states and 10350 transitions. [2024-10-14 04:01:50,234 INFO L78 Accepts]: Start accepts. Automaton has 7048 states and 10350 transitions. Word has length 136 [2024-10-14 04:01:50,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:50,235 INFO L471 AbstractCegarLoop]: Abstraction has 7048 states and 10350 transitions. [2024-10-14 04:01:50,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 11 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:50,235 INFO L276 IsEmpty]: Start isEmpty. Operand 7048 states and 10350 transitions. [2024-10-14 04:01:50,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-14 04:01:50,236 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:50,236 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:50,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 04:01:50,237 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:50,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:50,237 INFO L85 PathProgramCache]: Analyzing trace with hash -2078950384, now seen corresponding path program 1 times [2024-10-14 04:01:50,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:50,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95252753] [2024-10-14 04:01:50,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:50,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:50,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:50,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:50,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95252753] [2024-10-14 04:01:50,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95252753] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:50,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:50,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:01:50,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69899786] [2024-10-14 04:01:50,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:50,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 04:01:50,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:50,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 04:01:50,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 04:01:50,465 INFO L87 Difference]: Start difference. First operand 7048 states and 10350 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 7 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:50,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:50,840 INFO L93 Difference]: Finished difference Result 20328 states and 29943 transitions. [2024-10-14 04:01:50,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 04:01:50,840 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 7 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2024-10-14 04:01:50,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:50,853 INFO L225 Difference]: With dead ends: 20328 [2024-10-14 04:01:50,853 INFO L226 Difference]: Without dead ends: 13604 [2024-10-14 04:01:50,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-10-14 04:01:50,860 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 1055 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:50,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1055 Valid, 740 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 04:01:50,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13604 states. [2024-10-14 04:01:50,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13604 to 7048. [2024-10-14 04:01:50,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7048 states, 7047 states have (on average 1.4685681850432808) internal successors, (10349), 7047 states have internal predecessors, (10349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:50,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7048 states to 7048 states and 10349 transitions. [2024-10-14 04:01:50,945 INFO L78 Accepts]: Start accepts. Automaton has 7048 states and 10349 transitions. Word has length 137 [2024-10-14 04:01:50,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:50,945 INFO L471 AbstractCegarLoop]: Abstraction has 7048 states and 10349 transitions. [2024-10-14 04:01:50,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 7 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:50,945 INFO L276 IsEmpty]: Start isEmpty. Operand 7048 states and 10349 transitions. [2024-10-14 04:01:50,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-14 04:01:50,947 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:50,947 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:50,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-14 04:01:50,947 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:50,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:50,947 INFO L85 PathProgramCache]: Analyzing trace with hash -91675790, now seen corresponding path program 1 times [2024-10-14 04:01:50,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:50,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777078753] [2024-10-14 04:01:50,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:50,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:50,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:51,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:51,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:51,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777078753] [2024-10-14 04:01:51,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777078753] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:51,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:51,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 04:01:51,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476205532] [2024-10-14 04:01:51,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:51,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 04:01:51,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:51,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 04:01:51,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-10-14 04:01:51,294 INFO L87 Difference]: Start difference. First operand 7048 states and 10349 transitions. Second operand has 13 states, 13 states have (on average 10.615384615384615) internal successors, (138), 12 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:51,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:51,870 INFO L93 Difference]: Finished difference Result 20944 states and 30647 transitions. [2024-10-14 04:01:51,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-14 04:01:51,870 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.615384615384615) internal successors, (138), 12 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2024-10-14 04:01:51,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:51,880 INFO L225 Difference]: With dead ends: 20944 [2024-10-14 04:01:51,880 INFO L226 Difference]: Without dead ends: 14281 [2024-10-14 04:01:51,884 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=151, Invalid=499, Unknown=0, NotChecked=0, Total=650 [2024-10-14 04:01:51,884 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 930 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 1085 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:51,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [930 Valid, 1085 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1022 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 04:01:51,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14281 states. [2024-10-14 04:01:51,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14281 to 7138. [2024-10-14 04:01:51,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7138 states, 7137 states have (on average 1.4681238615664844) internal successors, (10478), 7137 states have internal predecessors, (10478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:51,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7138 states to 7138 states and 10478 transitions. [2024-10-14 04:01:51,985 INFO L78 Accepts]: Start accepts. Automaton has 7138 states and 10478 transitions. Word has length 138 [2024-10-14 04:01:51,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:51,986 INFO L471 AbstractCegarLoop]: Abstraction has 7138 states and 10478 transitions. [2024-10-14 04:01:51,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.615384615384615) internal successors, (138), 12 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:51,986 INFO L276 IsEmpty]: Start isEmpty. Operand 7138 states and 10478 transitions. [2024-10-14 04:01:51,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-14 04:01:51,989 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:51,989 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:51,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-14 04:01:51,989 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:51,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:51,990 INFO L85 PathProgramCache]: Analyzing trace with hash -580998382, now seen corresponding path program 1 times [2024-10-14 04:01:51,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:51,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189342242] [2024-10-14 04:01:51,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:51,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:52,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:52,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:52,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:52,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189342242] [2024-10-14 04:01:52,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189342242] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:52,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:52,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 04:01:52,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138150319] [2024-10-14 04:01:52,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:52,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 04:01:52,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:52,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 04:01:52,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 04:01:52,205 INFO L87 Difference]: Start difference. First operand 7138 states and 10478 transitions. Second operand has 9 states, 9 states have (on average 15.333333333333334) internal successors, (138), 8 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:52,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:52,604 INFO L93 Difference]: Finished difference Result 20891 states and 30658 transitions. [2024-10-14 04:01:52,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:01:52,604 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.333333333333334) internal successors, (138), 8 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2024-10-14 04:01:52,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:52,616 INFO L225 Difference]: With dead ends: 20891 [2024-10-14 04:01:52,616 INFO L226 Difference]: Without dead ends: 14128 [2024-10-14 04:01:52,622 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-10-14 04:01:52,622 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 777 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:52,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 808 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 04:01:52,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14128 states. [2024-10-14 04:01:52,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14128 to 7138. [2024-10-14 04:01:52,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7138 states, 7137 states have (on average 1.4653215636822194) internal successors, (10458), 7137 states have internal predecessors, (10458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:52,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7138 states to 7138 states and 10458 transitions. [2024-10-14 04:01:52,737 INFO L78 Accepts]: Start accepts. Automaton has 7138 states and 10458 transitions. Word has length 138 [2024-10-14 04:01:52,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:52,738 INFO L471 AbstractCegarLoop]: Abstraction has 7138 states and 10458 transitions. [2024-10-14 04:01:52,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.333333333333334) internal successors, (138), 8 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:52,738 INFO L276 IsEmpty]: Start isEmpty. Operand 7138 states and 10458 transitions. [2024-10-14 04:01:52,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-14 04:01:52,740 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:52,740 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:52,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-14 04:01:52,740 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:52,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:52,741 INFO L85 PathProgramCache]: Analyzing trace with hash 162925182, now seen corresponding path program 1 times [2024-10-14 04:01:52,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:52,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422708977] [2024-10-14 04:01:52,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:52,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:53,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:53,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:53,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422708977] [2024-10-14 04:01:53,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422708977] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:53,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:53,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 04:01:53,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104705325] [2024-10-14 04:01:53,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:53,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 04:01:53,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:53,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 04:01:53,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 04:01:53,031 INFO L87 Difference]: Start difference. First operand 7138 states and 10458 transitions. Second operand has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 8 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:53,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:53,499 INFO L93 Difference]: Finished difference Result 20999 states and 30800 transitions. [2024-10-14 04:01:53,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:01:53,500 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 8 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2024-10-14 04:01:53,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:53,514 INFO L225 Difference]: With dead ends: 20999 [2024-10-14 04:01:53,515 INFO L226 Difference]: Without dead ends: 14116 [2024-10-14 04:01:53,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-10-14 04:01:53,523 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 664 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 1184 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:53,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 1184 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 04:01:53,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14116 states. [2024-10-14 04:01:53,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14116 to 7138. [2024-10-14 04:01:53,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7138 states, 7137 states have (on average 1.4640605296343001) internal successors, (10449), 7137 states have internal predecessors, (10449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:53,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7138 states to 7138 states and 10449 transitions. [2024-10-14 04:01:53,609 INFO L78 Accepts]: Start accepts. Automaton has 7138 states and 10449 transitions. Word has length 139 [2024-10-14 04:01:53,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:53,610 INFO L471 AbstractCegarLoop]: Abstraction has 7138 states and 10449 transitions. [2024-10-14 04:01:53,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 8 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:53,610 INFO L276 IsEmpty]: Start isEmpty. Operand 7138 states and 10449 transitions. [2024-10-14 04:01:53,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-14 04:01:53,611 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:53,611 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:53,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-14 04:01:53,611 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:53,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:53,612 INFO L85 PathProgramCache]: Analyzing trace with hash 260720439, now seen corresponding path program 1 times [2024-10-14 04:01:53,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:53,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594919821] [2024-10-14 04:01:53,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:53,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:53,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:53,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:53,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:53,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594919821] [2024-10-14 04:01:53,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594919821] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:53,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:53,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:01:53,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957615807] [2024-10-14 04:01:53,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:53,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:01:53,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:53,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:01:53,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:01:53,687 INFO L87 Difference]: Start difference. First operand 7138 states and 10449 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:53,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:53,729 INFO L93 Difference]: Finished difference Result 19946 states and 29415 transitions. [2024-10-14 04:01:53,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:01:53,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2024-10-14 04:01:53,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:53,745 INFO L225 Difference]: With dead ends: 19946 [2024-10-14 04:01:53,745 INFO L226 Difference]: Without dead ends: 13390 [2024-10-14 04:01:53,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:01:53,752 INFO L432 NwaCegarLoop]: 412 mSDtfsCounter, 153 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:53,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 637 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:01:53,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13390 states. [2024-10-14 04:01:53,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13390 to 13084. [2024-10-14 04:01:53,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13084 states, 13083 states have (on average 1.461132767713827) internal successors, (19116), 13083 states have internal predecessors, (19116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:53,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13084 states to 13084 states and 19116 transitions. [2024-10-14 04:01:53,923 INFO L78 Accepts]: Start accepts. Automaton has 13084 states and 19116 transitions. Word has length 140 [2024-10-14 04:01:53,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:53,923 INFO L471 AbstractCegarLoop]: Abstraction has 13084 states and 19116 transitions. [2024-10-14 04:01:53,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:53,923 INFO L276 IsEmpty]: Start isEmpty. Operand 13084 states and 19116 transitions. [2024-10-14 04:01:53,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-14 04:01:53,924 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:53,924 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:53,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-14 04:01:53,925 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:53,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:53,925 INFO L85 PathProgramCache]: Analyzing trace with hash 996788471, now seen corresponding path program 1 times [2024-10-14 04:01:53,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:53,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969116725] [2024-10-14 04:01:53,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:53,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:53,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:54,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:54,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:54,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969116725] [2024-10-14 04:01:54,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969116725] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:54,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:54,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 04:01:54,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902027898] [2024-10-14 04:01:54,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:54,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 04:01:54,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:54,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 04:01:54,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 04:01:54,200 INFO L87 Difference]: Start difference. First operand 13084 states and 19116 transitions. Second operand has 9 states, 9 states have (on average 15.555555555555555) internal successors, (140), 8 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:54,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:54,700 INFO L93 Difference]: Finished difference Result 38944 states and 56876 transitions. [2024-10-14 04:01:54,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:01:54,701 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.555555555555555) internal successors, (140), 8 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2024-10-14 04:01:54,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:54,726 INFO L225 Difference]: With dead ends: 38944 [2024-10-14 04:01:54,727 INFO L226 Difference]: Without dead ends: 26217 [2024-10-14 04:01:54,741 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-10-14 04:01:54,742 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 1149 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:54,742 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1149 Valid, 912 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 781 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 04:01:54,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26217 states. [2024-10-14 04:01:54,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26217 to 13084. [2024-10-14 04:01:54,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13084 states, 13083 states have (on average 1.4604448520981426) internal successors, (19107), 13083 states have internal predecessors, (19107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:54,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13084 states to 13084 states and 19107 transitions. [2024-10-14 04:01:54,903 INFO L78 Accepts]: Start accepts. Automaton has 13084 states and 19107 transitions. Word has length 140 [2024-10-14 04:01:54,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:54,903 INFO L471 AbstractCegarLoop]: Abstraction has 13084 states and 19107 transitions. [2024-10-14 04:01:54,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.555555555555555) internal successors, (140), 8 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:54,903 INFO L276 IsEmpty]: Start isEmpty. Operand 13084 states and 19107 transitions. [2024-10-14 04:01:54,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-14 04:01:54,904 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:54,906 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:54,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-14 04:01:54,906 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:54,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:54,906 INFO L85 PathProgramCache]: Analyzing trace with hash 278482521, now seen corresponding path program 1 times [2024-10-14 04:01:54,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:54,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036865316] [2024-10-14 04:01:54,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:54,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:54,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:55,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:55,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:55,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036865316] [2024-10-14 04:01:55,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036865316] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:55,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:55,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 04:01:55,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526214730] [2024-10-14 04:01:55,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:55,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 04:01:55,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:55,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 04:01:55,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:01:55,297 INFO L87 Difference]: Start difference. First operand 13084 states and 19107 transitions. Second operand has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:56,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:56,154 INFO L93 Difference]: Finished difference Result 32695 states and 47719 transitions. [2024-10-14 04:01:56,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 04:01:56,154 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2024-10-14 04:01:56,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:56,173 INFO L225 Difference]: With dead ends: 32695 [2024-10-14 04:01:56,173 INFO L226 Difference]: Without dead ends: 19923 [2024-10-14 04:01:56,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=488, Unknown=0, NotChecked=0, Total=650 [2024-10-14 04:01:56,185 INFO L432 NwaCegarLoop]: 355 mSDtfsCounter, 1158 mSDsluCounter, 1637 mSDsCounter, 0 mSdLazyCounter, 1737 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 1992 SdHoareTripleChecker+Invalid, 1746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:56,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1158 Valid, 1992 Invalid, 1746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1737 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 04:01:56,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19923 states. [2024-10-14 04:01:56,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19923 to 12961. [2024-10-14 04:01:56,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12961 states, 12960 states have (on average 1.4618055555555556) internal successors, (18945), 12960 states have internal predecessors, (18945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:56,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12961 states to 12961 states and 18945 transitions. [2024-10-14 04:01:56,318 INFO L78 Accepts]: Start accepts. Automaton has 12961 states and 18945 transitions. Word has length 141 [2024-10-14 04:01:56,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:56,318 INFO L471 AbstractCegarLoop]: Abstraction has 12961 states and 18945 transitions. [2024-10-14 04:01:56,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:56,319 INFO L276 IsEmpty]: Start isEmpty. Operand 12961 states and 18945 transitions. [2024-10-14 04:01:56,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-14 04:01:56,320 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:56,320 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:56,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-14 04:01:56,320 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:56,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:56,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1085677242, now seen corresponding path program 1 times [2024-10-14 04:01:56,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:56,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206000551] [2024-10-14 04:01:56,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:56,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:56,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:56,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:56,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:56,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206000551] [2024-10-14 04:01:56,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206000551] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:56,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:56,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 04:01:56,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252627026] [2024-10-14 04:01:56,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:56,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 04:01:56,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:56,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 04:01:56,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-10-14 04:01:56,758 INFO L87 Difference]: Start difference. First operand 12961 states and 18945 transitions. Second operand has 12 states, 12 states have (on average 11.75) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:57,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:57,682 INFO L93 Difference]: Finished difference Result 79088 states and 114963 transitions. [2024-10-14 04:01:57,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-14 04:01:57,683 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2024-10-14 04:01:57,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:57,745 INFO L225 Difference]: With dead ends: 79088 [2024-10-14 04:01:57,745 INFO L226 Difference]: Without dead ends: 66461 [2024-10-14 04:01:57,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=197, Invalid=559, Unknown=0, NotChecked=0, Total=756 [2024-10-14 04:01:57,770 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 2367 mSDsluCounter, 1277 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2367 SdHoareTripleChecker+Valid, 1548 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:57,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2367 Valid, 1548 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1359 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 04:01:57,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66461 states. [2024-10-14 04:01:58,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66461 to 12994. [2024-10-14 04:01:58,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12994 states, 12993 states have (on average 1.4604787193103979) internal successors, (18976), 12993 states have internal predecessors, (18976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:58,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12994 states to 12994 states and 18976 transitions. [2024-10-14 04:01:58,218 INFO L78 Accepts]: Start accepts. Automaton has 12994 states and 18976 transitions. Word has length 141 [2024-10-14 04:01:58,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:58,218 INFO L471 AbstractCegarLoop]: Abstraction has 12994 states and 18976 transitions. [2024-10-14 04:01:58,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 11 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:58,218 INFO L276 IsEmpty]: Start isEmpty. Operand 12994 states and 18976 transitions. [2024-10-14 04:01:58,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-14 04:01:58,220 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:58,220 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:58,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-14 04:01:58,221 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:58,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:58,221 INFO L85 PathProgramCache]: Analyzing trace with hash 147849508, now seen corresponding path program 1 times [2024-10-14 04:01:58,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:58,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228376776] [2024-10-14 04:01:58,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:58,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:58,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:01:58,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:01:58,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:01:58,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228376776] [2024-10-14 04:01:58,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228376776] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:01:58,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:01:58,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 04:01:58,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381168940] [2024-10-14 04:01:58,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:01:58,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 04:01:58,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:01:58,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 04:01:58,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-14 04:01:58,824 INFO L87 Difference]: Start difference. First operand 12994 states and 18976 transitions. Second operand has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 12 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:59,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:01:59,317 INFO L93 Difference]: Finished difference Result 28409 states and 41571 transitions. [2024-10-14 04:01:59,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:01:59,318 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 12 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2024-10-14 04:01:59,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:01:59,344 INFO L225 Difference]: With dead ends: 28409 [2024-10-14 04:01:59,344 INFO L226 Difference]: Without dead ends: 25667 [2024-10-14 04:01:59,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-14 04:01:59,355 INFO L432 NwaCegarLoop]: 407 mSDtfsCounter, 1278 mSDsluCounter, 2318 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1278 SdHoareTripleChecker+Valid, 2725 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:01:59,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1278 Valid, 2725 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:01:59,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25667 states. [2024-10-14 04:01:59,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25667 to 12935. [2024-10-14 04:01:59,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12935 states, 12934 states have (on average 1.4605690428328437) internal successors, (18891), 12934 states have internal predecessors, (18891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:59,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12935 states to 12935 states and 18891 transitions. [2024-10-14 04:01:59,563 INFO L78 Accepts]: Start accepts. Automaton has 12935 states and 18891 transitions. Word has length 142 [2024-10-14 04:01:59,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:01:59,563 INFO L471 AbstractCegarLoop]: Abstraction has 12935 states and 18891 transitions. [2024-10-14 04:01:59,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 12 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:01:59,564 INFO L276 IsEmpty]: Start isEmpty. Operand 12935 states and 18891 transitions. [2024-10-14 04:01:59,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-14 04:01:59,565 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:01:59,565 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:59,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-14 04:01:59,565 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:01:59,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:01:59,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1595291582, now seen corresponding path program 1 times [2024-10-14 04:01:59,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:01:59,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199103622] [2024-10-14 04:01:59,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:01:59,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:01:59,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:02:02,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:02:02,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:02:02,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199103622] [2024-10-14 04:02:02,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199103622] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:02:02,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:02:02,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [] total 50 [2024-10-14 04:02:02,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646489172] [2024-10-14 04:02:02,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:02:02,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-10-14 04:02:02,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:02:02,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-10-14 04:02:02,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=2289, Unknown=0, NotChecked=0, Total=2450 [2024-10-14 04:02:02,790 INFO L87 Difference]: Start difference. First operand 12935 states and 18891 transitions. Second operand has 50 states, 50 states have (on average 2.84) internal successors, (142), 50 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:16,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:02:16,965 INFO L93 Difference]: Finished difference Result 26380 states and 38546 transitions. [2024-10-14 04:02:16,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-10-14 04:02:16,965 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.84) internal successors, (142), 50 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2024-10-14 04:02:16,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:02:16,985 INFO L225 Difference]: With dead ends: 26380 [2024-10-14 04:02:16,985 INFO L226 Difference]: Without dead ends: 23746 [2024-10-14 04:02:16,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1556 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=1149, Invalid=7781, Unknown=0, NotChecked=0, Total=8930 [2024-10-14 04:02:16,993 INFO L432 NwaCegarLoop]: 1048 mSDtfsCounter, 3401 mSDsluCounter, 30152 mSDsCounter, 0 mSdLazyCounter, 20934 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3401 SdHoareTripleChecker+Valid, 31200 SdHoareTripleChecker+Invalid, 20945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 20934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2024-10-14 04:02:16,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3401 Valid, 31200 Invalid, 20945 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 20934 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2024-10-14 04:02:17,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23746 states. [2024-10-14 04:02:17,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23746 to 12974. [2024-10-14 04:02:17,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12974 states, 12973 states have (on average 1.4598782085870654) internal successors, (18939), 12973 states have internal predecessors, (18939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:17,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12974 states to 12974 states and 18939 transitions. [2024-10-14 04:02:17,137 INFO L78 Accepts]: Start accepts. Automaton has 12974 states and 18939 transitions. Word has length 142 [2024-10-14 04:02:17,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:02:17,138 INFO L471 AbstractCegarLoop]: Abstraction has 12974 states and 18939 transitions. [2024-10-14 04:02:17,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.84) internal successors, (142), 50 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:17,138 INFO L276 IsEmpty]: Start isEmpty. Operand 12974 states and 18939 transitions. [2024-10-14 04:02:17,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-14 04:02:17,139 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:02:17,139 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:17,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-14 04:02:17,139 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:02:17,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:02:17,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1442493467, now seen corresponding path program 1 times [2024-10-14 04:02:17,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:02:17,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17488297] [2024-10-14 04:02:17,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:02:17,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:02:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:02:17,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:02:17,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:02:17,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17488297] [2024-10-14 04:02:17,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17488297] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:02:17,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:02:17,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 04:02:17,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101891955] [2024-10-14 04:02:17,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:02:17,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 04:02:17,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:02:17,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 04:02:17,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-14 04:02:17,591 INFO L87 Difference]: Start difference. First operand 12974 states and 18939 transitions. Second operand has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 12 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:18,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:02:18,123 INFO L93 Difference]: Finished difference Result 28241 states and 41340 transitions. [2024-10-14 04:02:18,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:02:18,124 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 12 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2024-10-14 04:02:18,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:02:18,151 INFO L225 Difference]: With dead ends: 28241 [2024-10-14 04:02:18,151 INFO L226 Difference]: Without dead ends: 25560 [2024-10-14 04:02:18,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-14 04:02:18,162 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 1254 mSDsluCounter, 2043 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 2316 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:02:18,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1254 Valid, 2316 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:02:18,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25560 states. [2024-10-14 04:02:18,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25560 to 12944. [2024-10-14 04:02:18,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12944 states, 12943 states have (on average 1.4595534265626207) internal successors, (18891), 12943 states have internal predecessors, (18891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:18,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12944 states to 12944 states and 18891 transitions. [2024-10-14 04:02:18,309 INFO L78 Accepts]: Start accepts. Automaton has 12944 states and 18891 transitions. Word has length 142 [2024-10-14 04:02:18,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:02:18,309 INFO L471 AbstractCegarLoop]: Abstraction has 12944 states and 18891 transitions. [2024-10-14 04:02:18,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 12 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:18,309 INFO L276 IsEmpty]: Start isEmpty. Operand 12944 states and 18891 transitions. [2024-10-14 04:02:18,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-14 04:02:18,310 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:02:18,310 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:18,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-14 04:02:18,311 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:02:18,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:02:18,311 INFO L85 PathProgramCache]: Analyzing trace with hash -43376340, now seen corresponding path program 1 times [2024-10-14 04:02:18,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:02:18,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454550439] [2024-10-14 04:02:18,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:02:18,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:02:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:02:18,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:02:18,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:02:18,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454550439] [2024-10-14 04:02:18,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454550439] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:02:18,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:02:18,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 04:02:18,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532924114] [2024-10-14 04:02:18,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:02:18,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 04:02:18,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:02:18,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 04:02:18,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 04:02:18,537 INFO L87 Difference]: Start difference. First operand 12944 states and 18891 transitions. Second operand has 9 states, 9 states have (on average 15.777777777777779) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:18,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:02:18,939 INFO L93 Difference]: Finished difference Result 38454 states and 56156 transitions. [2024-10-14 04:02:18,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:02:18,940 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.777777777777779) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2024-10-14 04:02:18,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:02:18,963 INFO L225 Difference]: With dead ends: 38454 [2024-10-14 04:02:18,963 INFO L226 Difference]: Without dead ends: 25863 [2024-10-14 04:02:18,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-10-14 04:02:18,976 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 725 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 04:02:18,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [725 Valid, 880 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 04:02:18,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25863 states. [2024-10-14 04:02:19,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25863 to 12917. [2024-10-14 04:02:19,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12917 states, 12916 states have (on average 1.459817280891917) internal successors, (18855), 12916 states have internal predecessors, (18855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:19,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12917 states to 12917 states and 18855 transitions. [2024-10-14 04:02:19,133 INFO L78 Accepts]: Start accepts. Automaton has 12917 states and 18855 transitions. Word has length 142 [2024-10-14 04:02:19,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:02:19,133 INFO L471 AbstractCegarLoop]: Abstraction has 12917 states and 18855 transitions. [2024-10-14 04:02:19,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.777777777777779) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:19,133 INFO L276 IsEmpty]: Start isEmpty. Operand 12917 states and 18855 transitions. [2024-10-14 04:02:19,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-14 04:02:19,134 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:02:19,134 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:19,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-14 04:02:19,134 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:02:19,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:02:19,135 INFO L85 PathProgramCache]: Analyzing trace with hash -531449917, now seen corresponding path program 1 times [2024-10-14 04:02:19,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:02:19,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015722839] [2024-10-14 04:02:19,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:02:19,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:02:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:02:19,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:02:19,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:02:19,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015722839] [2024-10-14 04:02:19,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015722839] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:02:19,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:02:19,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 04:02:19,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513877778] [2024-10-14 04:02:19,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:02:19,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 04:02:19,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:02:19,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 04:02:19,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-14 04:02:19,588 INFO L87 Difference]: Start difference. First operand 12917 states and 18855 transitions. Second operand has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 12 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:20,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:02:20,063 INFO L93 Difference]: Finished difference Result 28207 states and 41275 transitions. [2024-10-14 04:02:20,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:02:20,064 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 12 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2024-10-14 04:02:20,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:02:20,087 INFO L225 Difference]: With dead ends: 28207 [2024-10-14 04:02:20,087 INFO L226 Difference]: Without dead ends: 25517 [2024-10-14 04:02:20,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-14 04:02:20,095 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 1464 mSDsluCounter, 1652 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 1930 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:02:20,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1464 Valid, 1930 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:02:20,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25517 states. [2024-10-14 04:02:20,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25517 to 12889. [2024-10-14 04:02:20,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12889 states, 12888 states have (on average 1.4596523898199876) internal successors, (18812), 12888 states have internal predecessors, (18812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:20,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12889 states to 12889 states and 18812 transitions. [2024-10-14 04:02:20,247 INFO L78 Accepts]: Start accepts. Automaton has 12889 states and 18812 transitions. Word has length 142 [2024-10-14 04:02:20,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:02:20,247 INFO L471 AbstractCegarLoop]: Abstraction has 12889 states and 18812 transitions. [2024-10-14 04:02:20,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 12 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:20,247 INFO L276 IsEmpty]: Start isEmpty. Operand 12889 states and 18812 transitions. [2024-10-14 04:02:20,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-14 04:02:20,248 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:02:20,248 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:20,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-14 04:02:20,248 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:02:20,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:02:20,248 INFO L85 PathProgramCache]: Analyzing trace with hash 989241028, now seen corresponding path program 1 times [2024-10-14 04:02:20,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:02:20,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424725513] [2024-10-14 04:02:20,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:02:20,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:02:20,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:02:20,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:02:20,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:02:20,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424725513] [2024-10-14 04:02:20,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424725513] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:02:20,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:02:20,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 04:02:20,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95541080] [2024-10-14 04:02:20,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:02:20,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 04:02:20,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:02:20,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 04:02:20,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-14 04:02:20,743 INFO L87 Difference]: Start difference. First operand 12889 states and 18812 transitions. Second operand has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 12 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:21,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:02:21,236 INFO L93 Difference]: Finished difference Result 28204 states and 41261 transitions. [2024-10-14 04:02:21,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:02:21,237 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 12 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2024-10-14 04:02:21,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:02:21,261 INFO L225 Difference]: With dead ends: 28204 [2024-10-14 04:02:21,261 INFO L226 Difference]: Without dead ends: 25494 [2024-10-14 04:02:21,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-14 04:02:21,271 INFO L432 NwaCegarLoop]: 394 mSDtfsCounter, 1032 mSDsluCounter, 2394 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:02:21,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1032 Valid, 2788 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:02:21,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25494 states. [2024-10-14 04:02:21,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25494 to 12836. [2024-10-14 04:02:21,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12836 states, 12835 states have (on average 1.460148032723023) internal successors, (18741), 12835 states have internal predecessors, (18741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:21,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12836 states to 12836 states and 18741 transitions. [2024-10-14 04:02:21,425 INFO L78 Accepts]: Start accepts. Automaton has 12836 states and 18741 transitions. Word has length 142 [2024-10-14 04:02:21,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:02:21,425 INFO L471 AbstractCegarLoop]: Abstraction has 12836 states and 18741 transitions. [2024-10-14 04:02:21,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 12 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:21,425 INFO L276 IsEmpty]: Start isEmpty. Operand 12836 states and 18741 transitions. [2024-10-14 04:02:21,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-14 04:02:21,426 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:02:21,426 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:21,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-14 04:02:21,426 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:02:21,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:02:21,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1586474170, now seen corresponding path program 1 times [2024-10-14 04:02:21,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:02:21,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387401115] [2024-10-14 04:02:21,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:02:21,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:02:21,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:02:21,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:02:21,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:02:21,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387401115] [2024-10-14 04:02:21,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387401115] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:02:21,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:02:21,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-14 04:02:21,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139884958] [2024-10-14 04:02:21,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:02:21,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 04:02:21,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:02:21,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 04:02:21,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-14 04:02:21,880 INFO L87 Difference]: Start difference. First operand 12836 states and 18741 transitions. Second operand has 14 states, 14 states have (on average 10.142857142857142) internal successors, (142), 13 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:22,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:02:22,546 INFO L93 Difference]: Finished difference Result 30707 states and 44945 transitions. [2024-10-14 04:02:22,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 04:02:22,547 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.142857142857142) internal successors, (142), 13 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2024-10-14 04:02:22,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:02:22,574 INFO L225 Difference]: With dead ends: 30707 [2024-10-14 04:02:22,575 INFO L226 Difference]: Without dead ends: 27982 [2024-10-14 04:02:22,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-10-14 04:02:22,585 INFO L432 NwaCegarLoop]: 606 mSDtfsCounter, 1256 mSDsluCounter, 4461 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1256 SdHoareTripleChecker+Valid, 5067 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:02:22,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1256 Valid, 5067 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:02:22,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27982 states. [2024-10-14 04:02:22,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27982 to 12749. [2024-10-14 04:02:22,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12749 states, 12748 states have (on average 1.4616410417320365) internal successors, (18633), 12748 states have internal predecessors, (18633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:22,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12749 states to 12749 states and 18633 transitions. [2024-10-14 04:02:22,745 INFO L78 Accepts]: Start accepts. Automaton has 12749 states and 18633 transitions. Word has length 142 [2024-10-14 04:02:22,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:02:22,745 INFO L471 AbstractCegarLoop]: Abstraction has 12749 states and 18633 transitions. [2024-10-14 04:02:22,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.142857142857142) internal successors, (142), 13 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:22,745 INFO L276 IsEmpty]: Start isEmpty. Operand 12749 states and 18633 transitions. [2024-10-14 04:02:22,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-14 04:02:22,746 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:02:22,746 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:22,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-10-14 04:02:22,746 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:02:22,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:02:22,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1035378887, now seen corresponding path program 1 times [2024-10-14 04:02:22,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:02:22,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442703022] [2024-10-14 04:02:22,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:02:22,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:02:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:02:23,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:02:23,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:02:23,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442703022] [2024-10-14 04:02:23,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442703022] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:02:23,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:02:23,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 04:02:23,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914272652] [2024-10-14 04:02:23,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:02:23,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 04:02:23,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:02:23,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 04:02:23,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:02:23,144 INFO L87 Difference]: Start difference. First operand 12749 states and 18633 transitions. Second operand has 11 states, 11 states have (on average 12.909090909090908) internal successors, (142), 10 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:23,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:02:23,421 INFO L93 Difference]: Finished difference Result 27885 states and 40863 transitions. [2024-10-14 04:02:23,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 04:02:23,422 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.909090909090908) internal successors, (142), 10 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2024-10-14 04:02:23,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:02:23,443 INFO L225 Difference]: With dead ends: 27885 [2024-10-14 04:02:23,443 INFO L226 Difference]: Without dead ends: 25213 [2024-10-14 04:02:23,451 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2024-10-14 04:02:23,452 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 1113 mSDsluCounter, 1066 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 04:02:23,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1113 Valid, 1321 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 04:02:23,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25213 states. [2024-10-14 04:02:23,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25213 to 12711. [2024-10-14 04:02:23,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12711 states, 12710 states have (on average 1.4623918174665618) internal successors, (18587), 12710 states have internal predecessors, (18587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:23,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12711 states to 12711 states and 18587 transitions. [2024-10-14 04:02:23,596 INFO L78 Accepts]: Start accepts. Automaton has 12711 states and 18587 transitions. Word has length 142 [2024-10-14 04:02:23,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:02:23,596 INFO L471 AbstractCegarLoop]: Abstraction has 12711 states and 18587 transitions. [2024-10-14 04:02:23,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.909090909090908) internal successors, (142), 10 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:23,597 INFO L276 IsEmpty]: Start isEmpty. Operand 12711 states and 18587 transitions. [2024-10-14 04:02:23,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-14 04:02:23,597 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:02:23,597 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:23,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-10-14 04:02:23,597 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:02:23,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:02:23,598 INFO L85 PathProgramCache]: Analyzing trace with hash 587478731, now seen corresponding path program 1 times [2024-10-14 04:02:23,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:02:23,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217564143] [2024-10-14 04:02:23,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:02:23,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:02:23,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:02:24,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:02:24,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:02:24,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217564143] [2024-10-14 04:02:24,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217564143] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:02:24,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:02:24,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-14 04:02:24,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080431778] [2024-10-14 04:02:24,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:02:24,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 04:02:24,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:02:24,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 04:02:24,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-14 04:02:24,047 INFO L87 Difference]: Start difference. First operand 12711 states and 18587 transitions. Second operand has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:24,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:02:24,632 INFO L93 Difference]: Finished difference Result 52885 states and 77569 transitions. [2024-10-14 04:02:24,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 04:02:24,633 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2024-10-14 04:02:24,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:02:24,686 INFO L225 Difference]: With dead ends: 52885 [2024-10-14 04:02:24,686 INFO L226 Difference]: Without dead ends: 50237 [2024-10-14 04:02:24,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-10-14 04:02:24,705 INFO L432 NwaCegarLoop]: 636 mSDtfsCounter, 1171 mSDsluCounter, 4067 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 4703 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:02:24,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1171 Valid, 4703 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:02:24,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50237 states. [2024-10-14 04:02:25,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50237 to 12676. [2024-10-14 04:02:25,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12676 states, 12675 states have (on average 1.4630374753451676) internal successors, (18544), 12675 states have internal predecessors, (18544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:25,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12676 states to 12676 states and 18544 transitions. [2024-10-14 04:02:25,044 INFO L78 Accepts]: Start accepts. Automaton has 12676 states and 18544 transitions. Word has length 143 [2024-10-14 04:02:25,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:02:25,044 INFO L471 AbstractCegarLoop]: Abstraction has 12676 states and 18544 transitions. [2024-10-14 04:02:25,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:25,044 INFO L276 IsEmpty]: Start isEmpty. Operand 12676 states and 18544 transitions. [2024-10-14 04:02:25,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-14 04:02:25,045 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:02:25,045 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:25,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-10-14 04:02:25,045 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:02:25,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:02:25,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1624071080, now seen corresponding path program 1 times [2024-10-14 04:02:25,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:02:25,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579586274] [2024-10-14 04:02:25,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:02:25,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:02:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:02:25,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:02:25,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:02:25,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579586274] [2024-10-14 04:02:25,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579586274] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:02:25,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:02:25,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 04:02:25,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834822272] [2024-10-14 04:02:25,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:02:25,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 04:02:25,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:02:25,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 04:02:25,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 04:02:25,155 INFO L87 Difference]: Start difference. First operand 12676 states and 18544 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:25,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:02:25,218 INFO L93 Difference]: Finished difference Result 30588 states and 44862 transitions. [2024-10-14 04:02:25,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 04:02:25,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2024-10-14 04:02:25,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:02:25,235 INFO L225 Difference]: With dead ends: 30588 [2024-10-14 04:02:25,235 INFO L226 Difference]: Without dead ends: 18086 [2024-10-14 04:02:25,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 04:02:25,248 INFO L432 NwaCegarLoop]: 373 mSDtfsCounter, 132 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:02:25,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 669 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:02:25,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18086 states. [2024-10-14 04:02:25,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18086 to 18084. [2024-10-14 04:02:25,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18084 states, 18083 states have (on average 1.459934745340928) internal successors, (26400), 18083 states have internal predecessors, (26400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:25,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18084 states to 18084 states and 26400 transitions. [2024-10-14 04:02:25,403 INFO L78 Accepts]: Start accepts. Automaton has 18084 states and 26400 transitions. Word has length 143 [2024-10-14 04:02:25,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:02:25,403 INFO L471 AbstractCegarLoop]: Abstraction has 18084 states and 26400 transitions. [2024-10-14 04:02:25,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:25,403 INFO L276 IsEmpty]: Start isEmpty. Operand 18084 states and 26400 transitions. [2024-10-14 04:02:25,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-14 04:02:25,403 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:02:25,403 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:25,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-10-14 04:02:25,404 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:02:25,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:02:25,404 INFO L85 PathProgramCache]: Analyzing trace with hash 758282267, now seen corresponding path program 1 times [2024-10-14 04:02:25,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:02:25,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628420815] [2024-10-14 04:02:25,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:02:25,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:02:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:02:25,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:02:25,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:02:25,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628420815] [2024-10-14 04:02:25,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628420815] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:02:25,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:02:25,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 04:02:25,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933339951] [2024-10-14 04:02:25,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:02:25,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 04:02:25,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:02:25,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 04:02:25,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-14 04:02:25,818 INFO L87 Difference]: Start difference. First operand 18084 states and 26400 transitions. Second operand has 13 states, 13 states have (on average 11.0) internal successors, (143), 12 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:26,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:02:26,366 INFO L93 Difference]: Finished difference Result 39916 states and 58362 transitions. [2024-10-14 04:02:26,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:02:26,367 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 12 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2024-10-14 04:02:26,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:02:26,404 INFO L225 Difference]: With dead ends: 39916 [2024-10-14 04:02:26,404 INFO L226 Difference]: Without dead ends: 36010 [2024-10-14 04:02:26,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-14 04:02:26,419 INFO L432 NwaCegarLoop]: 372 mSDtfsCounter, 987 mSDsluCounter, 2616 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 2988 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:02:26,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [987 Valid, 2988 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:02:26,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36010 states. [2024-10-14 04:02:26,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36010 to 18088. [2024-10-14 04:02:26,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18088 states, 18087 states have (on average 1.4599436059047934) internal successors, (26406), 18087 states have internal predecessors, (26406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:26,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18088 states to 18088 states and 26406 transitions. [2024-10-14 04:02:26,742 INFO L78 Accepts]: Start accepts. Automaton has 18088 states and 26406 transitions. Word has length 143 [2024-10-14 04:02:26,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:02:26,742 INFO L471 AbstractCegarLoop]: Abstraction has 18088 states and 26406 transitions. [2024-10-14 04:02:26,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 12 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:26,742 INFO L276 IsEmpty]: Start isEmpty. Operand 18088 states and 26406 transitions. [2024-10-14 04:02:26,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-10-14 04:02:26,745 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:02:26,745 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:26,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-10-14 04:02:26,745 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:02:26,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:02:26,746 INFO L85 PathProgramCache]: Analyzing trace with hash 951344730, now seen corresponding path program 1 times [2024-10-14 04:02:26,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:02:26,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540913953] [2024-10-14 04:02:26,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:02:26,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:02:26,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:02:26,836 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:02:26,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:02:26,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540913953] [2024-10-14 04:02:26,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540913953] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:02:26,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:02:26,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 04:02:26,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863858338] [2024-10-14 04:02:26,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:02:26,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 04:02:26,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:02:26,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 04:02:26,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:02:26,837 INFO L87 Difference]: Start difference. First operand 18088 states and 26406 transitions. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:26,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:02:26,908 INFO L93 Difference]: Finished difference Result 37496 states and 54827 transitions. [2024-10-14 04:02:26,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 04:02:26,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 183 [2024-10-14 04:02:26,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:02:26,933 INFO L225 Difference]: With dead ends: 37496 [2024-10-14 04:02:26,933 INFO L226 Difference]: Without dead ends: 24994 [2024-10-14 04:02:26,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 04:02:26,947 INFO L432 NwaCegarLoop]: 382 mSDtfsCounter, 127 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 04:02:26,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 617 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 04:02:26,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24994 states. [2024-10-14 04:02:27,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24994 to 24376. [2024-10-14 04:02:27,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24376 states, 24375 states have (on average 1.4550974358974358) internal successors, (35468), 24375 states have internal predecessors, (35468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:27,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24376 states to 24376 states and 35468 transitions. [2024-10-14 04:02:27,190 INFO L78 Accepts]: Start accepts. Automaton has 24376 states and 35468 transitions. Word has length 183 [2024-10-14 04:02:27,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:02:27,190 INFO L471 AbstractCegarLoop]: Abstraction has 24376 states and 35468 transitions. [2024-10-14 04:02:27,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:27,190 INFO L276 IsEmpty]: Start isEmpty. Operand 24376 states and 35468 transitions. [2024-10-14 04:02:27,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-10-14 04:02:27,192 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:02:27,192 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:27,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-10-14 04:02:27,192 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:02:27,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:02:27,192 INFO L85 PathProgramCache]: Analyzing trace with hash -729296145, now seen corresponding path program 1 times [2024-10-14 04:02:27,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:02:27,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219991379] [2024-10-14 04:02:27,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:02:27,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:02:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:02:27,302 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:02:27,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:02:27,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219991379] [2024-10-14 04:02:27,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219991379] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:02:27,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:02:27,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 04:02:27,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265672014] [2024-10-14 04:02:27,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:02:27,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:02:27,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:02:27,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:02:27,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:02:27,304 INFO L87 Difference]: Start difference. First operand 24376 states and 35468 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:27,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:02:27,662 INFO L93 Difference]: Finished difference Result 100556 states and 147122 transitions. [2024-10-14 04:02:27,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 04:02:27,663 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 185 [2024-10-14 04:02:27,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:02:27,745 INFO L225 Difference]: With dead ends: 100556 [2024-10-14 04:02:27,746 INFO L226 Difference]: Without dead ends: 76378 [2024-10-14 04:02:27,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-14 04:02:27,780 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 1558 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1558 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:02:27,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1558 Valid, 563 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:02:27,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76378 states. [2024-10-14 04:02:28,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76378 to 51512. [2024-10-14 04:02:28,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51512 states, 51511 states have (on average 1.4533983032750286) internal successors, (74866), 51511 states have internal predecessors, (74866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:28,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51512 states to 51512 states and 74866 transitions. [2024-10-14 04:02:28,514 INFO L78 Accepts]: Start accepts. Automaton has 51512 states and 74866 transitions. Word has length 185 [2024-10-14 04:02:28,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:02:28,515 INFO L471 AbstractCegarLoop]: Abstraction has 51512 states and 74866 transitions. [2024-10-14 04:02:28,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:28,515 INFO L276 IsEmpty]: Start isEmpty. Operand 51512 states and 74866 transitions. [2024-10-14 04:02:28,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-10-14 04:02:28,517 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:02:28,517 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:28,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-10-14 04:02:28,517 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:02:28,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:02:28,518 INFO L85 PathProgramCache]: Analyzing trace with hash -989715747, now seen corresponding path program 1 times [2024-10-14 04:02:28,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:02:28,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710466413] [2024-10-14 04:02:28,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:02:28,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:02:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:02:28,641 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:02:28,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:02:28,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710466413] [2024-10-14 04:02:28,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710466413] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:02:28,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:02:28,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 04:02:28,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229063985] [2024-10-14 04:02:28,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:02:28,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:02:28,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:02:28,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:02:28,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:02:28,643 INFO L87 Difference]: Start difference. First operand 51512 states and 74866 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:29,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:02:29,404 INFO L93 Difference]: Finished difference Result 186108 states and 270940 transitions. [2024-10-14 04:02:29,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 04:02:29,404 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 185 [2024-10-14 04:02:29,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:02:29,537 INFO L225 Difference]: With dead ends: 186108 [2024-10-14 04:02:29,537 INFO L226 Difference]: Without dead ends: 134794 [2024-10-14 04:02:29,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-14 04:02:29,557 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 1388 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:02:29,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1388 Valid, 559 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:02:29,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134794 states. [2024-10-14 04:02:30,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134794 to 108744. [2024-10-14 04:02:30,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108744 states, 108743 states have (on average 1.4511830646570354) internal successors, (157806), 108743 states have internal predecessors, (157806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:31,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108744 states to 108744 states and 157806 transitions. [2024-10-14 04:02:31,192 INFO L78 Accepts]: Start accepts. Automaton has 108744 states and 157806 transitions. Word has length 185 [2024-10-14 04:02:31,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:02:31,192 INFO L471 AbstractCegarLoop]: Abstraction has 108744 states and 157806 transitions. [2024-10-14 04:02:31,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:31,192 INFO L276 IsEmpty]: Start isEmpty. Operand 108744 states and 157806 transitions. [2024-10-14 04:02:31,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-10-14 04:02:31,195 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:02:31,195 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:31,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-10-14 04:02:31,195 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:02:31,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:02:31,196 INFO L85 PathProgramCache]: Analyzing trace with hash -650218613, now seen corresponding path program 1 times [2024-10-14 04:02:31,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:02:31,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010215313] [2024-10-14 04:02:31,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:02:31,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:02:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:02:31,440 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:02:31,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:02:31,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010215313] [2024-10-14 04:02:31,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010215313] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:02:31,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:02:31,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 04:02:31,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291186959] [2024-10-14 04:02:31,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:02:31,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:02:31,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:02:31,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:02:31,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:02:31,442 INFO L87 Difference]: Start difference. First operand 108744 states and 157806 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:32,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:02:32,631 INFO L93 Difference]: Finished difference Result 366092 states and 531008 transitions. [2024-10-14 04:02:32,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 04:02:32,631 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 185 [2024-10-14 04:02:32,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:02:32,970 INFO L225 Difference]: With dead ends: 366092 [2024-10-14 04:02:32,970 INFO L226 Difference]: Without dead ends: 257546 [2024-10-14 04:02:33,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-14 04:02:33,035 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 1303 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1303 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:02:33,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1303 Valid, 557 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:02:33,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257546 states. [2024-10-14 04:02:35,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257546 to 229128. [2024-10-14 04:02:35,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229128 states, 229127 states have (on average 1.448864603473183) internal successors, (331974), 229127 states have internal predecessors, (331974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:36,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229128 states to 229128 states and 331974 transitions. [2024-10-14 04:02:36,361 INFO L78 Accepts]: Start accepts. Automaton has 229128 states and 331974 transitions. Word has length 185 [2024-10-14 04:02:36,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:02:36,361 INFO L471 AbstractCegarLoop]: Abstraction has 229128 states and 331974 transitions. [2024-10-14 04:02:36,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:36,362 INFO L276 IsEmpty]: Start isEmpty. Operand 229128 states and 331974 transitions. [2024-10-14 04:02:36,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-10-14 04:02:36,366 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:02:36,366 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:36,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-10-14 04:02:36,366 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:02:36,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:02:36,367 INFO L85 PathProgramCache]: Analyzing trace with hash 268380552, now seen corresponding path program 1 times [2024-10-14 04:02:36,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:02:36,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686803482] [2024-10-14 04:02:36,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:02:36,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:02:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:02:36,533 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:02:36,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:02:36,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686803482] [2024-10-14 04:02:36,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686803482] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 04:02:36,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992229637] [2024-10-14 04:02:36,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:02:36,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 04:02:36,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:02:36,536 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 04:02:36,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 04:02:36,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:02:36,752 INFO L255 TraceCheckSpWp]: Trace formula consists of 783 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 04:02:36,760 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 04:02:37,159 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:02:37,160 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 04:02:37,359 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:02:37,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992229637] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 04:02:37,359 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 04:02:37,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-10-14 04:02:37,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432891313] [2024-10-14 04:02:37,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 04:02:37,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 04:02:37,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:02:37,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 04:02:37,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:02:37,362 INFO L87 Difference]: Start difference. First operand 229128 states and 331974 transitions. Second operand has 11 states, 11 states have (on average 30.181818181818183) internal successors, (332), 10 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:39,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:02:39,893 INFO L93 Difference]: Finished difference Result 720140 states and 1040488 transitions. [2024-10-14 04:02:39,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 04:02:39,894 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 30.181818181818183) internal successors, (332), 10 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 185 [2024-10-14 04:02:39,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:02:40,616 INFO L225 Difference]: With dead ends: 720140 [2024-10-14 04:02:40,616 INFO L226 Difference]: Without dead ends: 491210 [2024-10-14 04:02:40,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 360 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:02:40,736 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 1240 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1240 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:02:40,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1240 Valid, 591 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 04:02:41,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491210 states. [2024-10-14 04:02:45,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491210 to 479368. [2024-10-14 04:02:46,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479368 states, 479367 states have (on average 1.4389434399948264) internal successors, (689782), 479367 states have internal predecessors, (689782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:48,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479368 states to 479368 states and 689782 transitions. [2024-10-14 04:02:48,102 INFO L78 Accepts]: Start accepts. Automaton has 479368 states and 689782 transitions. Word has length 185 [2024-10-14 04:02:48,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:02:48,102 INFO L471 AbstractCegarLoop]: Abstraction has 479368 states and 689782 transitions. [2024-10-14 04:02:48,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 30.181818181818183) internal successors, (332), 10 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 04:02:48,103 INFO L276 IsEmpty]: Start isEmpty. Operand 479368 states and 689782 transitions. [2024-10-14 04:02:48,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-10-14 04:02:48,107 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:02:48,107 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:48,122 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 04:02:48,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-10-14 04:02:48,308 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:02:48,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:02:48,309 INFO L85 PathProgramCache]: Analyzing trace with hash 640494944, now seen corresponding path program 1 times [2024-10-14 04:02:48,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:02:48,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228668404] [2024-10-14 04:02:48,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:02:48,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:02:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:02:48,425 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:02:48,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:02:48,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228668404] [2024-10-14 04:02:48,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228668404] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:02:48,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:02:48,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 04:02:48,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454854187] [2024-10-14 04:02:48,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:02:48,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:02:48,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:02:48,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:02:48,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:02:48,427 INFO L87 Difference]: Start difference. First operand 479368 states and 689782 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)