./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 895ff1e019ffafaf8b2f8e3efbd16ea4845b2e4eac0a4db8b4c86c462883ae8c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 18:16:41,064 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 18:16:41,121 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-18 18:16:41,127 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 18:16:41,128 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 18:16:41,155 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 18:16:41,155 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 18:16:41,156 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 18:16:41,156 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 18:16:41,156 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 18:16:41,157 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 18:16:41,157 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 18:16:41,159 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 18:16:41,160 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 18:16:41,161 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 18:16:41,162 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 18:16:41,162 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 18:16:41,162 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 18:16:41,162 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 18:16:41,163 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 18:16:41,163 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 18:16:41,166 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 18:16:41,166 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 18:16:41,166 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 18:16:41,166 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 18:16:41,167 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 18:16:41,167 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 18:16:41,167 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 18:16:41,167 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 18:16:41,167 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 18:16:41,168 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 18:16:41,168 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 18:16:41,168 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 18:16:41,168 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 18:16:41,168 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 18:16:41,168 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 18:16:41,168 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 18:16:41,169 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 18:16:41,169 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 18:16:41,169 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 895ff1e019ffafaf8b2f8e3efbd16ea4845b2e4eac0a4db8b4c86c462883ae8c [2024-11-18 18:16:41,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 18:16:41,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 18:16:41,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 18:16:41,430 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 18:16:41,430 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 18:16:41,431 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p2.c [2024-11-18 18:16:42,812 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 18:16:43,043 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 18:16:43,044 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p2.c [2024-11-18 18:16:43,054 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3fb8f181/035d492a18224056a59a10814bf4dd5b/FLAG8c83802b5 [2024-11-18 18:16:43,416 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3fb8f181/035d492a18224056a59a10814bf4dd5b [2024-11-18 18:16:43,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 18:16:43,420 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 18:16:43,422 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 18:16:43,423 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 18:16:43,437 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 18:16:43,437 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:16:43" (1/1) ... [2024-11-18 18:16:43,438 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1630f0d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:43, skipping insertion in model container [2024-11-18 18:16:43,438 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:16:43" (1/1) ... [2024-11-18 18:16:43,466 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 18:16:43,652 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p2.c[1259,1272] [2024-11-18 18:16:43,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 18:16:43,721 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 18:16:43,734 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p2.c[1259,1272] [2024-11-18 18:16:43,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 18:16:43,779 INFO L204 MainTranslator]: Completed translation [2024-11-18 18:16:43,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:43 WrapperNode [2024-11-18 18:16:43,779 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 18:16:43,780 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 18:16:43,780 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 18:16:43,780 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 18:16:43,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:43" (1/1) ... [2024-11-18 18:16:43,797 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:43" (1/1) ... [2024-11-18 18:16:43,847 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 484 [2024-11-18 18:16:43,847 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 18:16:43,848 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 18:16:43,848 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 18:16:43,848 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 18:16:43,857 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:43" (1/1) ... [2024-11-18 18:16:43,857 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:43" (1/1) ... [2024-11-18 18:16:43,864 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:43" (1/1) ... [2024-11-18 18:16:43,887 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 18:16:43,887 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:43" (1/1) ... [2024-11-18 18:16:43,887 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:43" (1/1) ... [2024-11-18 18:16:43,903 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:43" (1/1) ... [2024-11-18 18:16:43,907 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:43" (1/1) ... [2024-11-18 18:16:43,914 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:43" (1/1) ... [2024-11-18 18:16:43,918 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:43" (1/1) ... [2024-11-18 18:16:43,927 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 18:16:43,928 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 18:16:43,928 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 18:16:43,928 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 18:16:43,929 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:43" (1/1) ... [2024-11-18 18:16:43,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 18:16:43,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 18:16:43,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 18:16:43,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 18:16:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 18:16:44,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 18:16:44,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 18:16:44,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 18:16:44,091 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 18:16:44,093 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 18:16:44,617 INFO L? ?]: Removed 251 outVars from TransFormulas that were not future-live. [2024-11-18 18:16:44,618 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 18:16:44,632 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 18:16:44,633 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 18:16:44,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:16:44 BoogieIcfgContainer [2024-11-18 18:16:44,634 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 18:16:44,636 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 18:16:44,636 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 18:16:44,639 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 18:16:44,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:16:43" (1/3) ... [2024-11-18 18:16:44,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5081c264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:16:44, skipping insertion in model container [2024-11-18 18:16:44,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:16:43" (2/3) ... [2024-11-18 18:16:44,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5081c264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:16:44, skipping insertion in model container [2024-11-18 18:16:44,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:16:44" (3/3) ... [2024-11-18 18:16:44,641 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_s1269b_p2.c [2024-11-18 18:16:44,657 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 18:16:44,657 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 18:16:44,712 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 18:16:44,718 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;@1e9add35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 18:16:44,719 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 18:16:44,723 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 124 states have (on average 1.4919354838709677) internal successors, (185), 125 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) [2024-11-18 18:16:44,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-18 18:16:44,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:44,730 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] [2024-11-18 18:16:44,731 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:44,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:44,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1135438275, now seen corresponding path program 1 times [2024-11-18 18:16:44,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:44,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411301357] [2024-11-18 18:16:44,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:44,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:44,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:45,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:45,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:45,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411301357] [2024-11-18 18:16:45,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411301357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:45,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:45,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 18:16:45,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921653655] [2024-11-18 18:16:45,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:45,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 18:16:45,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:45,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 18:16:45,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 18:16:45,273 INFO L87 Difference]: Start difference. First operand has 126 states, 124 states have (on average 1.4919354838709677) internal successors, (185), 125 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) Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-11-18 18:16:45,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:45,316 INFO L93 Difference]: Finished difference Result 233 states and 345 transitions. [2024-11-18 18:16:45,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 18:16:45,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 23 [2024-11-18 18:16:45,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:45,326 INFO L225 Difference]: With dead ends: 233 [2024-11-18 18:16:45,326 INFO L226 Difference]: Without dead ends: 125 [2024-11-18 18:16:45,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 18:16:45,331 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:45,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 531 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:16:45,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-18 18:16:45,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2024-11-18 18:16:45,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.4758064516129032) internal successors, (183), 124 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) [2024-11-18 18:16:45,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 183 transitions. [2024-11-18 18:16:45,362 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 183 transitions. Word has length 23 [2024-11-18 18:16:45,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:45,362 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 183 transitions. [2024-11-18 18:16:45,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-11-18 18:16:45,363 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 183 transitions. [2024-11-18 18:16:45,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-18 18:16:45,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:45,363 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] [2024-11-18 18:16:45,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 18:16:45,364 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:45,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:45,364 INFO L85 PathProgramCache]: Analyzing trace with hash 840543427, now seen corresponding path program 1 times [2024-11-18 18:16:45,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:45,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881101250] [2024-11-18 18:16:45,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:45,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:45,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:45,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:45,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:45,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881101250] [2024-11-18 18:16:45,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881101250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:45,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:45,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 18:16:45,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90300367] [2024-11-18 18:16:45,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:45,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 18:16:45,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:45,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 18:16:45,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 18:16:45,458 INFO L87 Difference]: Start difference. First operand 125 states and 183 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2024-11-18 18:16:45,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:45,491 INFO L93 Difference]: Finished difference Result 234 states and 343 transitions. [2024-11-18 18:16:45,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 18:16:45,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 24 [2024-11-18 18:16:45,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:45,493 INFO L225 Difference]: With dead ends: 234 [2024-11-18 18:16:45,493 INFO L226 Difference]: Without dead ends: 127 [2024-11-18 18:16:45,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 18:16:45,494 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:45,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 527 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:16:45,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-18 18:16:45,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-11-18 18:16:45,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.4682539682539681) internal successors, (185), 126 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) [2024-11-18 18:16:45,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 185 transitions. [2024-11-18 18:16:45,512 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 185 transitions. Word has length 24 [2024-11-18 18:16:45,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:45,514 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 185 transitions. [2024-11-18 18:16:45,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2024-11-18 18:16:45,514 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 185 transitions. [2024-11-18 18:16:45,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-18 18:16:45,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:45,515 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] [2024-11-18 18:16:45,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 18:16:45,515 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:45,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:45,515 INFO L85 PathProgramCache]: Analyzing trace with hash -810923364, now seen corresponding path program 1 times [2024-11-18 18:16:45,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:45,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22435287] [2024-11-18 18:16:45,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:45,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:45,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:45,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:45,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22435287] [2024-11-18 18:16:45,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22435287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:45,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:45,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 18:16:45,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468018458] [2024-11-18 18:16:45,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:45,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 18:16:45,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:45,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 18:16:45,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 18:16:45,813 INFO L87 Difference]: Start difference. First operand 127 states and 185 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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) [2024-11-18 18:16:45,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:45,859 INFO L93 Difference]: Finished difference Result 250 states and 365 transitions. [2024-11-18 18:16:45,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 18:16:45,860 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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 25 [2024-11-18 18:16:45,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:45,862 INFO L225 Difference]: With dead ends: 250 [2024-11-18 18:16:45,862 INFO L226 Difference]: Without dead ends: 141 [2024-11-18 18:16:45,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 18:16:45,863 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 26 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:45,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 1001 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:16:45,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-18 18:16:45,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 140. [2024-11-18 18:16:45,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 139 states have (on average 1.460431654676259) internal successors, (203), 139 states have internal predecessors, (203), 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) [2024-11-18 18:16:45,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 203 transitions. [2024-11-18 18:16:45,869 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 203 transitions. Word has length 25 [2024-11-18 18:16:45,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:45,869 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 203 transitions. [2024-11-18 18:16:45,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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) [2024-11-18 18:16:45,869 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 203 transitions. [2024-11-18 18:16:45,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-18 18:16:45,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:45,870 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] [2024-11-18 18:16:45,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 18:16:45,870 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:45,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:45,871 INFO L85 PathProgramCache]: Analyzing trace with hash 816764857, now seen corresponding path program 1 times [2024-11-18 18:16:45,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:45,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729331706] [2024-11-18 18:16:45,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:45,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:46,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:46,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:46,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729331706] [2024-11-18 18:16:46,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729331706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:46,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:46,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 18:16:46,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176532712] [2024-11-18 18:16:46,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:46,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 18:16:46,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:46,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 18:16:46,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 18:16:46,438 INFO L87 Difference]: Start difference. First operand 140 states and 203 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 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) [2024-11-18 18:16:46,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:46,550 INFO L93 Difference]: Finished difference Result 256 states and 371 transitions. [2024-11-18 18:16:46,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 18:16:46,551 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 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 27 [2024-11-18 18:16:46,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:46,552 INFO L225 Difference]: With dead ends: 256 [2024-11-18 18:16:46,552 INFO L226 Difference]: Without dead ends: 141 [2024-11-18 18:16:46,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-18 18:16:46,553 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 25 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1334 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:46,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 1334 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:16:46,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-18 18:16:46,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2024-11-18 18:16:46,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.45) internal successors, (203), 140 states have internal predecessors, (203), 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) [2024-11-18 18:16:46,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 203 transitions. [2024-11-18 18:16:46,562 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 203 transitions. Word has length 27 [2024-11-18 18:16:46,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:46,563 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 203 transitions. [2024-11-18 18:16:46,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 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) [2024-11-18 18:16:46,563 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 203 transitions. [2024-11-18 18:16:46,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-18 18:16:46,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:46,564 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] [2024-11-18 18:16:46,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 18:16:46,565 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:46,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:46,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1260296434, now seen corresponding path program 1 times [2024-11-18 18:16:46,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:46,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136354855] [2024-11-18 18:16:46,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:46,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:46,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:46,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:46,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:46,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136354855] [2024-11-18 18:16:46,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136354855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:46,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:46,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 18:16:46,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316924976] [2024-11-18 18:16:46,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:46,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 18:16:46,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:46,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 18:16:46,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 18:16:46,696 INFO L87 Difference]: Start difference. First operand 141 states and 203 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 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) [2024-11-18 18:16:46,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:46,775 INFO L93 Difference]: Finished difference Result 320 states and 459 transitions. [2024-11-18 18:16:46,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 18:16:46,775 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 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 28 [2024-11-18 18:16:46,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:46,776 INFO L225 Difference]: With dead ends: 320 [2024-11-18 18:16:46,776 INFO L226 Difference]: Without dead ends: 200 [2024-11-18 18:16:46,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-18 18:16:46,777 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 108 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:46,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 982 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:16:46,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-11-18 18:16:46,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 142. [2024-11-18 18:16:46,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 1.4397163120567376) internal successors, (203), 141 states have internal predecessors, (203), 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) [2024-11-18 18:16:46,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 203 transitions. [2024-11-18 18:16:46,788 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 203 transitions. Word has length 28 [2024-11-18 18:16:46,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:46,789 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 203 transitions. [2024-11-18 18:16:46,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 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) [2024-11-18 18:16:46,789 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 203 transitions. [2024-11-18 18:16:46,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-18 18:16:46,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:46,790 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] [2024-11-18 18:16:46,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 18:16:46,790 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:46,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:46,790 INFO L85 PathProgramCache]: Analyzing trace with hash -2085566478, now seen corresponding path program 1 times [2024-11-18 18:16:46,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:46,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313951846] [2024-11-18 18:16:46,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:46,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:46,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:46,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:46,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313951846] [2024-11-18 18:16:46,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313951846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:46,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:46,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 18:16:46,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056892176] [2024-11-18 18:16:46,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:46,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 18:16:46,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:46,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 18:16:46,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 18:16:46,884 INFO L87 Difference]: Start difference. First operand 142 states and 203 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2024-11-18 18:16:46,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:46,919 INFO L93 Difference]: Finished difference Result 312 states and 449 transitions. [2024-11-18 18:16:46,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 18:16:46,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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 29 [2024-11-18 18:16:46,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:46,921 INFO L225 Difference]: With dead ends: 312 [2024-11-18 18:16:46,921 INFO L226 Difference]: Without dead ends: 192 [2024-11-18 18:16:46,921 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:16:46,922 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 106 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:46,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 670 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:16:46,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-11-18 18:16:46,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 135. [2024-11-18 18:16:46,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 134 states have (on average 1.4402985074626866) internal successors, (193), 134 states have internal predecessors, (193), 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) [2024-11-18 18:16:46,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 193 transitions. [2024-11-18 18:16:46,934 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 193 transitions. Word has length 29 [2024-11-18 18:16:46,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:46,934 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 193 transitions. [2024-11-18 18:16:46,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2024-11-18 18:16:46,935 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 193 transitions. [2024-11-18 18:16:46,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-18 18:16:46,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:46,936 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-18 18:16:46,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 18:16:46,936 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:46,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:46,937 INFO L85 PathProgramCache]: Analyzing trace with hash -905939236, now seen corresponding path program 1 times [2024-11-18 18:16:46,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:46,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799860681] [2024-11-18 18:16:46,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:46,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:47,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:47,408 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:47,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:47,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799860681] [2024-11-18 18:16:47,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799860681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:47,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:47,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 18:16:47,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951479075] [2024-11-18 18:16:47,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:47,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 18:16:47,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:47,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 18:16:47,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-18 18:16:47,411 INFO L87 Difference]: Start difference. First operand 135 states and 193 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 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) [2024-11-18 18:16:47,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:47,522 INFO L93 Difference]: Finished difference Result 304 states and 440 transitions. [2024-11-18 18:16:47,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 18:16:47,523 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 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 78 [2024-11-18 18:16:47,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:47,524 INFO L225 Difference]: With dead ends: 304 [2024-11-18 18:16:47,524 INFO L226 Difference]: Without dead ends: 195 [2024-11-18 18:16:47,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-18 18:16:47,525 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 110 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:47,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 1003 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:16:47,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-18 18:16:47,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 152. [2024-11-18 18:16:47,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 151 states have (on average 1.423841059602649) internal successors, (215), 151 states have internal predecessors, (215), 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) [2024-11-18 18:16:47,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 215 transitions. [2024-11-18 18:16:47,529 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 215 transitions. Word has length 78 [2024-11-18 18:16:47,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:47,530 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 215 transitions. [2024-11-18 18:16:47,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 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) [2024-11-18 18:16:47,530 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 215 transitions. [2024-11-18 18:16:47,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 18:16:47,531 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:47,532 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-18 18:16:47,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 18:16:47,532 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:47,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:47,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1704986318, now seen corresponding path program 1 times [2024-11-18 18:16:47,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:47,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126406763] [2024-11-18 18:16:47,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:47,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:47,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:47,927 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:47,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:47,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126406763] [2024-11-18 18:16:47,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126406763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:47,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:47,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 18:16:47,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373125693] [2024-11-18 18:16:47,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:47,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 18:16:47,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:47,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 18:16:47,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-18 18:16:47,930 INFO L87 Difference]: Start difference. First operand 152 states and 215 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 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) [2024-11-18 18:16:48,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:48,072 INFO L93 Difference]: Finished difference Result 320 states and 462 transitions. [2024-11-18 18:16:48,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 18:16:48,072 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 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 79 [2024-11-18 18:16:48,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:48,073 INFO L225 Difference]: With dead ends: 320 [2024-11-18 18:16:48,073 INFO L226 Difference]: Without dead ends: 211 [2024-11-18 18:16:48,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-18 18:16:48,074 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 111 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:48,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 1293 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:16:48,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-18 18:16:48,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 170. [2024-11-18 18:16:48,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 169 states have (on average 1.4201183431952662) internal successors, (240), 169 states have internal predecessors, (240), 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) [2024-11-18 18:16:48,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 240 transitions. [2024-11-18 18:16:48,078 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 240 transitions. Word has length 79 [2024-11-18 18:16:48,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:48,079 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 240 transitions. [2024-11-18 18:16:48,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 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) [2024-11-18 18:16:48,079 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 240 transitions. [2024-11-18 18:16:48,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 18:16:48,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:48,081 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-18 18:16:48,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 18:16:48,081 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:48,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:48,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1936749128, now seen corresponding path program 1 times [2024-11-18 18:16:48,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:48,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458158190] [2024-11-18 18:16:48,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:48,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:48,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:48,587 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:48,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:48,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458158190] [2024-11-18 18:16:48,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458158190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:48,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:48,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 18:16:48,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636319960] [2024-11-18 18:16:48,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:48,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 18:16:48,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:48,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 18:16:48,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-18 18:16:48,591 INFO L87 Difference]: Start difference. First operand 170 states and 240 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 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) [2024-11-18 18:16:48,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:48,743 INFO L93 Difference]: Finished difference Result 411 states and 592 transitions. [2024-11-18 18:16:48,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 18:16:48,743 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 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 80 [2024-11-18 18:16:48,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:48,744 INFO L225 Difference]: With dead ends: 411 [2024-11-18 18:16:48,745 INFO L226 Difference]: Without dead ends: 302 [2024-11-18 18:16:48,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-11-18 18:16:48,745 INFO L432 NwaCegarLoop]: 265 mSDtfsCounter, 171 mSDsluCounter, 1997 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 2262 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:48,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 2262 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:16:48,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-11-18 18:16:48,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 211. [2024-11-18 18:16:48,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 1.4285714285714286) internal successors, (300), 210 states have internal predecessors, (300), 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) [2024-11-18 18:16:48,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 300 transitions. [2024-11-18 18:16:48,757 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 300 transitions. Word has length 80 [2024-11-18 18:16:48,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:48,757 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 300 transitions. [2024-11-18 18:16:48,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 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) [2024-11-18 18:16:48,757 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 300 transitions. [2024-11-18 18:16:48,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-18 18:16:48,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:48,758 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] [2024-11-18 18:16:48,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 18:16:48,759 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:48,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:48,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1144376213, now seen corresponding path program 1 times [2024-11-18 18:16:48,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:48,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140316759] [2024-11-18 18:16:48,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:48,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:49,177 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:49,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:49,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140316759] [2024-11-18 18:16:49,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140316759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:49,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:49,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 18:16:49,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037328267] [2024-11-18 18:16:49,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:49,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 18:16:49,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:49,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 18:16:49,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 18:16:49,179 INFO L87 Difference]: Start difference. First operand 211 states and 300 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2024-11-18 18:16:49,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:49,192 INFO L93 Difference]: Finished difference Result 361 states and 519 transitions. [2024-11-18 18:16:49,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 18:16:49,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 81 [2024-11-18 18:16:49,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:49,194 INFO L225 Difference]: With dead ends: 361 [2024-11-18 18:16:49,194 INFO L226 Difference]: Without dead ends: 211 [2024-11-18 18:16:49,194 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 [2024-11-18 18:16:49,195 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 2 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:49,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 349 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:16:49,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-18 18:16:49,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2024-11-18 18:16:49,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 1.4238095238095239) internal successors, (299), 210 states have internal predecessors, (299), 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) [2024-11-18 18:16:49,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 299 transitions. [2024-11-18 18:16:49,202 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 299 transitions. Word has length 81 [2024-11-18 18:16:49,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:49,203 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 299 transitions. [2024-11-18 18:16:49,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2024-11-18 18:16:49,203 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 299 transitions. [2024-11-18 18:16:49,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-18 18:16:49,204 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:49,204 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] [2024-11-18 18:16:49,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 18:16:49,204 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:49,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:49,207 INFO L85 PathProgramCache]: Analyzing trace with hash 905973268, now seen corresponding path program 1 times [2024-11-18 18:16:49,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:49,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068322517] [2024-11-18 18:16:49,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:49,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:49,922 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:49,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:49,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068322517] [2024-11-18 18:16:49,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068322517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:49,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:49,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-18 18:16:49,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741990781] [2024-11-18 18:16:49,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:49,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-18 18:16:49,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:49,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-18 18:16:49,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-11-18 18:16:49,924 INFO L87 Difference]: Start difference. First operand 211 states and 299 transitions. Second operand has 16 states, 16 states have (on average 5.125) internal successors, (82), 16 states have internal predecessors, (82), 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) [2024-11-18 18:16:50,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:50,172 INFO L93 Difference]: Finished difference Result 440 states and 635 transitions. [2024-11-18 18:16:50,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-18 18:16:50,172 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.125) internal successors, (82), 16 states have internal predecessors, (82), 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 82 [2024-11-18 18:16:50,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:50,173 INFO L225 Difference]: With dead ends: 440 [2024-11-18 18:16:50,173 INFO L226 Difference]: Without dead ends: 290 [2024-11-18 18:16:50,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-11-18 18:16:50,174 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 87 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1830 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:50,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 1830 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 18:16:50,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-18 18:16:50,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 280. [2024-11-18 18:16:50,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 279 states have (on average 1.4229390681003584) internal successors, (397), 279 states have internal predecessors, (397), 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) [2024-11-18 18:16:50,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 397 transitions. [2024-11-18 18:16:50,178 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 397 transitions. Word has length 82 [2024-11-18 18:16:50,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:50,178 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 397 transitions. [2024-11-18 18:16:50,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.125) internal successors, (82), 16 states have internal predecessors, (82), 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) [2024-11-18 18:16:50,179 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 397 transitions. [2024-11-18 18:16:50,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-18 18:16:50,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:50,179 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] [2024-11-18 18:16:50,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 18:16:50,180 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:50,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:50,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1706440209, now seen corresponding path program 1 times [2024-11-18 18:16:50,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:50,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720190469] [2024-11-18 18:16:50,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:50,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:50,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:51,243 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:51,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:51,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720190469] [2024-11-18 18:16:51,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720190469] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 18:16:51,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533641329] [2024-11-18 18:16:51,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:51,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 18:16:51,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 18:16:51,246 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 18:16:51,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 18:16:51,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:51,432 INFO L255 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 69 conjuncts are in the unsatisfiable core [2024-11-18 18:16:51,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 18:16:52,416 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:52,417 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 18:16:53,413 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:53,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533641329] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 18:16:53,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 18:16:53,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19, 19] total 50 [2024-11-18 18:16:53,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630874129] [2024-11-18 18:16:53,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 18:16:53,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-18 18:16:53,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:53,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-18 18:16:53,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=2277, Unknown=0, NotChecked=0, Total=2450 [2024-11-18 18:16:53,418 INFO L87 Difference]: Start difference. First operand 280 states and 397 transitions. Second operand has 50 states, 50 states have (on average 3.88) internal successors, (194), 50 states have internal predecessors, (194), 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) [2024-11-18 18:16:54,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:54,278 INFO L93 Difference]: Finished difference Result 752 states and 1088 transitions. [2024-11-18 18:16:54,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-18 18:16:54,279 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 3.88) internal successors, (194), 50 states have internal predecessors, (194), 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 83 [2024-11-18 18:16:54,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:54,281 INFO L225 Difference]: With dead ends: 752 [2024-11-18 18:16:54,281 INFO L226 Difference]: Without dead ends: 553 [2024-11-18 18:16:54,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=208, Invalid=2762, Unknown=0, NotChecked=0, Total=2970 [2024-11-18 18:16:54,282 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 499 mSDsluCounter, 3556 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 3705 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:54,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 3705 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 18:16:54,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-18 18:16:54,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 504. [2024-11-18 18:16:54,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 503 states have (on average 1.4393638170974155) internal successors, (724), 503 states have internal predecessors, (724), 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) [2024-11-18 18:16:54,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 724 transitions. [2024-11-18 18:16:54,289 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 724 transitions. Word has length 83 [2024-11-18 18:16:54,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:54,290 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 724 transitions. [2024-11-18 18:16:54,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 3.88) internal successors, (194), 50 states have internal predecessors, (194), 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) [2024-11-18 18:16:54,290 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 724 transitions. [2024-11-18 18:16:54,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-18 18:16:54,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:54,291 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] [2024-11-18 18:16:54,305 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 18:16:54,491 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,SelfDestructingSolverStorable11 [2024-11-18 18:16:54,492 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:54,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:54,492 INFO L85 PathProgramCache]: Analyzing trace with hash -409749209, now seen corresponding path program 1 times [2024-11-18 18:16:54,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:54,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933505413] [2024-11-18 18:16:54,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:54,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:54,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:54,683 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:54,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:54,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933505413] [2024-11-18 18:16:54,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933505413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:16:54,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:16:54,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 18:16:54,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941941468] [2024-11-18 18:16:54,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:16:54,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 18:16:54,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:54,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 18:16:54,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 18:16:54,686 INFO L87 Difference]: Start difference. First operand 504 states and 724 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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) [2024-11-18 18:16:54,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:16:54,730 INFO L93 Difference]: Finished difference Result 747 states and 1079 transitions. [2024-11-18 18:16:54,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 18:16:54,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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 83 [2024-11-18 18:16:54,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:16:54,732 INFO L225 Difference]: With dead ends: 747 [2024-11-18 18:16:54,732 INFO L226 Difference]: Without dead ends: 514 [2024-11-18 18:16:54,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:16:54,733 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 65 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:16:54,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 666 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:16:54,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-11-18 18:16:54,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 504. [2024-11-18 18:16:54,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 503 states have (on average 1.4294234592445327) internal successors, (719), 503 states have internal predecessors, (719), 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) [2024-11-18 18:16:54,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 719 transitions. [2024-11-18 18:16:54,741 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 719 transitions. Word has length 83 [2024-11-18 18:16:54,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:16:54,741 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 719 transitions. [2024-11-18 18:16:54,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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) [2024-11-18 18:16:54,742 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 719 transitions. [2024-11-18 18:16:54,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-18 18:16:54,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:16:54,743 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] [2024-11-18 18:16:54,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 18:16:54,743 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:16:54,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:16:54,743 INFO L85 PathProgramCache]: Analyzing trace with hash 204506291, now seen corresponding path program 1 times [2024-11-18 18:16:54,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:16:54,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676128343] [2024-11-18 18:16:54,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:54,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:16:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:55,312 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:55,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:16:55,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676128343] [2024-11-18 18:16:55,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676128343] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 18:16:55,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054990697] [2024-11-18 18:16:55,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:16:55,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 18:16:55,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 18:16:55,315 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 18:16:55,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 18:16:55,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:16:55,505 INFO L255 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 122 conjuncts are in the unsatisfiable core [2024-11-18 18:16:55,511 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 18:16:56,798 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:56,799 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 18:16:59,194 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:16:59,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054990697] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 18:16:59,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 18:16:59,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 28, 25] total 60 [2024-11-18 18:16:59,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456421614] [2024-11-18 18:16:59,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 18:16:59,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-11-18 18:16:59,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:16:59,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-11-18 18:16:59,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=3232, Unknown=0, NotChecked=0, Total=3540 [2024-11-18 18:16:59,204 INFO L87 Difference]: Start difference. First operand 504 states and 719 transitions. Second operand has 60 states, 60 states have (on average 3.566666666666667) internal successors, (214), 60 states have internal predecessors, (214), 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) [2024-11-18 18:17:01,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:01,897 INFO L93 Difference]: Finished difference Result 1970 states and 2829 transitions. [2024-11-18 18:17:01,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-18 18:17:01,898 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 3.566666666666667) internal successors, (214), 60 states have internal predecessors, (214), 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 84 [2024-11-18 18:17:01,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:01,904 INFO L225 Difference]: With dead ends: 1970 [2024-11-18 18:17:01,904 INFO L226 Difference]: Without dead ends: 1517 [2024-11-18 18:17:01,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 121 SyntacticMatches, 2 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2625 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1002, Invalid=8700, Unknown=0, NotChecked=0, Total=9702 [2024-11-18 18:17:01,907 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 1064 mSDsluCounter, 5770 mSDsCounter, 0 mSdLazyCounter, 1796 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 5971 SdHoareTripleChecker+Invalid, 1813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:01,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1064 Valid, 5971 Invalid, 1813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1796 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-18 18:17:01,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2024-11-18 18:17:01,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 1177. [2024-11-18 18:17:01,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1177 states, 1176 states have (on average 1.4226190476190477) internal successors, (1673), 1176 states have internal predecessors, (1673), 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) [2024-11-18 18:17:01,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1673 transitions. [2024-11-18 18:17:01,926 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1673 transitions. Word has length 84 [2024-11-18 18:17:01,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:01,926 INFO L471 AbstractCegarLoop]: Abstraction has 1177 states and 1673 transitions. [2024-11-18 18:17:01,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 3.566666666666667) internal successors, (214), 60 states have internal predecessors, (214), 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) [2024-11-18 18:17:01,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1673 transitions. [2024-11-18 18:17:01,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-18 18:17:01,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:01,928 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] [2024-11-18 18:17:01,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-18 18:17:02,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-18 18:17:02,129 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:02,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:02,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1882507642, now seen corresponding path program 1 times [2024-11-18 18:17:02,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:02,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472595871] [2024-11-18 18:17:02,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:02,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:02,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:02,296 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:02,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:02,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472595871] [2024-11-18 18:17:02,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472595871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:02,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:02,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 18:17:02,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585303941] [2024-11-18 18:17:02,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:02,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 18:17:02,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:02,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 18:17:02,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 18:17:02,299 INFO L87 Difference]: Start difference. First operand 1177 states and 1673 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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) [2024-11-18 18:17:02,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:02,333 INFO L93 Difference]: Finished difference Result 1664 states and 2374 transitions. [2024-11-18 18:17:02,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 18:17:02,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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 84 [2024-11-18 18:17:02,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:02,337 INFO L225 Difference]: With dead ends: 1664 [2024-11-18 18:17:02,337 INFO L226 Difference]: Without dead ends: 1163 [2024-11-18 18:17:02,338 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 [2024-11-18 18:17:02,338 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 67 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:02,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 657 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:17:02,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2024-11-18 18:17:02,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 1163. [2024-11-18 18:17:02,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1163 states, 1162 states have (on average 1.4018932874354562) internal successors, (1629), 1162 states have internal predecessors, (1629), 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) [2024-11-18 18:17:02,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1629 transitions. [2024-11-18 18:17:02,351 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1629 transitions. Word has length 84 [2024-11-18 18:17:02,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:02,352 INFO L471 AbstractCegarLoop]: Abstraction has 1163 states and 1629 transitions. [2024-11-18 18:17:02,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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) [2024-11-18 18:17:02,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1629 transitions. [2024-11-18 18:17:02,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-18 18:17:02,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:02,355 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-18 18:17:02,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 18:17:02,355 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:02,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:02,356 INFO L85 PathProgramCache]: Analyzing trace with hash -515539137, now seen corresponding path program 1 times [2024-11-18 18:17:02,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:02,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659686053] [2024-11-18 18:17:02,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:02,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:02,668 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:02,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:02,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659686053] [2024-11-18 18:17:02,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659686053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:02,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:02,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 18:17:02,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892409229] [2024-11-18 18:17:02,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:02,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 18:17:02,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:02,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 18:17:02,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-18 18:17:02,670 INFO L87 Difference]: Start difference. First operand 1163 states and 1629 transitions. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 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) [2024-11-18 18:17:02,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:02,788 INFO L93 Difference]: Finished difference Result 1737 states and 2445 transitions. [2024-11-18 18:17:02,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 18:17:02,789 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 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 84 [2024-11-18 18:17:02,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:02,792 INFO L225 Difference]: With dead ends: 1737 [2024-11-18 18:17:02,793 INFO L226 Difference]: Without dead ends: 1199 [2024-11-18 18:17:02,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-18 18:17:02,794 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 82 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 1393 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:02,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 1393 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:17:02,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2024-11-18 18:17:02,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 1190. [2024-11-18 18:17:02,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1190 states, 1189 states have (on average 1.3952901597981497) internal successors, (1659), 1189 states have internal predecessors, (1659), 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) [2024-11-18 18:17:02,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1190 states to 1190 states and 1659 transitions. [2024-11-18 18:17:02,809 INFO L78 Accepts]: Start accepts. Automaton has 1190 states and 1659 transitions. Word has length 84 [2024-11-18 18:17:02,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:02,809 INFO L471 AbstractCegarLoop]: Abstraction has 1190 states and 1659 transitions. [2024-11-18 18:17:02,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 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) [2024-11-18 18:17:02,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1190 states and 1659 transitions. [2024-11-18 18:17:02,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-18 18:17:02,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:02,811 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-18 18:17:02,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 18:17:02,812 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:02,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:02,812 INFO L85 PathProgramCache]: Analyzing trace with hash -123681257, now seen corresponding path program 1 times [2024-11-18 18:17:02,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:02,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622473945] [2024-11-18 18:17:02,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:02,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:03,566 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:03,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:03,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622473945] [2024-11-18 18:17:03,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622473945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:03,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:03,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-18 18:17:03,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228908197] [2024-11-18 18:17:03,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:03,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-18 18:17:03,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:03,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-18 18:17:03,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-18 18:17:03,568 INFO L87 Difference]: Start difference. First operand 1190 states and 1659 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 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) [2024-11-18 18:17:03,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:03,879 INFO L93 Difference]: Finished difference Result 1435 states and 2009 transitions. [2024-11-18 18:17:03,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-18 18:17:03,880 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 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 84 [2024-11-18 18:17:03,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:03,884 INFO L225 Difference]: With dead ends: 1435 [2024-11-18 18:17:03,884 INFO L226 Difference]: Without dead ends: 1202 [2024-11-18 18:17:03,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2024-11-18 18:17:03,885 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 146 mSDsluCounter, 1712 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1870 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:03,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 1870 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 18:17:03,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2024-11-18 18:17:03,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 1190. [2024-11-18 18:17:03,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1190 states, 1189 states have (on average 1.3952901597981497) internal successors, (1659), 1189 states have internal predecessors, (1659), 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) [2024-11-18 18:17:03,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1190 states to 1190 states and 1659 transitions. [2024-11-18 18:17:03,898 INFO L78 Accepts]: Start accepts. Automaton has 1190 states and 1659 transitions. Word has length 84 [2024-11-18 18:17:03,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:03,898 INFO L471 AbstractCegarLoop]: Abstraction has 1190 states and 1659 transitions. [2024-11-18 18:17:03,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 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) [2024-11-18 18:17:03,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1190 states and 1659 transitions. [2024-11-18 18:17:03,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-18 18:17:03,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:03,900 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] [2024-11-18 18:17:03,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 18:17:03,900 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:03,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:03,901 INFO L85 PathProgramCache]: Analyzing trace with hash -554569480, now seen corresponding path program 1 times [2024-11-18 18:17:03,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:03,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111100624] [2024-11-18 18:17:03,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:03,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:04,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:04,930 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:04,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:04,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111100624] [2024-11-18 18:17:04,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111100624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:04,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:04,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-18 18:17:04,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756360881] [2024-11-18 18:17:04,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:04,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-18 18:17:04,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:04,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-18 18:17:04,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-18 18:17:04,932 INFO L87 Difference]: Start difference. First operand 1190 states and 1659 transitions. Second operand has 16 states, 16 states have (on average 5.25) internal successors, (84), 16 states have internal predecessors, (84), 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) [2024-11-18 18:17:05,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:05,254 INFO L93 Difference]: Finished difference Result 1479 states and 2073 transitions. [2024-11-18 18:17:05,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-18 18:17:05,255 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.25) internal successors, (84), 16 states have internal predecessors, (84), 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 84 [2024-11-18 18:17:05,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:05,259 INFO L225 Difference]: With dead ends: 1479 [2024-11-18 18:17:05,259 INFO L226 Difference]: Without dead ends: 1250 [2024-11-18 18:17:05,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2024-11-18 18:17:05,262 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 87 mSDsluCounter, 2051 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 2250 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:05,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 2250 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 18:17:05,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2024-11-18 18:17:05,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 930. [2024-11-18 18:17:05,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 930 states, 929 states have (on average 1.3907427341227125) internal successors, (1292), 929 states have internal predecessors, (1292), 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) [2024-11-18 18:17:05,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1292 transitions. [2024-11-18 18:17:05,277 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1292 transitions. Word has length 84 [2024-11-18 18:17:05,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:05,277 INFO L471 AbstractCegarLoop]: Abstraction has 930 states and 1292 transitions. [2024-11-18 18:17:05,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.25) internal successors, (84), 16 states have internal predecessors, (84), 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) [2024-11-18 18:17:05,278 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1292 transitions. [2024-11-18 18:17:05,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-18 18:17:05,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:05,279 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] [2024-11-18 18:17:05,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 18:17:05,279 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:05,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:05,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1880524660, now seen corresponding path program 1 times [2024-11-18 18:17:05,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:05,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048150272] [2024-11-18 18:17:05,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:05,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:05,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:05,450 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:05,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:05,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048150272] [2024-11-18 18:17:05,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048150272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:05,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:05,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 18:17:05,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060390155] [2024-11-18 18:17:05,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:05,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 18:17:05,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:05,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 18:17:05,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:17:05,453 INFO L87 Difference]: Start difference. First operand 930 states and 1292 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2024-11-18 18:17:05,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:05,526 INFO L93 Difference]: Finished difference Result 1765 states and 2455 transitions. [2024-11-18 18:17:05,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 18:17:05,527 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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 84 [2024-11-18 18:17:05,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:05,531 INFO L225 Difference]: With dead ends: 1765 [2024-11-18 18:17:05,531 INFO L226 Difference]: Without dead ends: 918 [2024-11-18 18:17:05,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-18 18:17:05,533 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 57 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:05,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 823 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:17:05,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2024-11-18 18:17:05,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 918. [2024-11-18 18:17:05,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 917 states have (on average 1.3849509269356597) internal successors, (1270), 917 states have internal predecessors, (1270), 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) [2024-11-18 18:17:05,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1270 transitions. [2024-11-18 18:17:05,545 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1270 transitions. Word has length 84 [2024-11-18 18:17:05,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:05,545 INFO L471 AbstractCegarLoop]: Abstraction has 918 states and 1270 transitions. [2024-11-18 18:17:05,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2024-11-18 18:17:05,546 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1270 transitions. [2024-11-18 18:17:05,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-18 18:17:05,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:05,547 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] [2024-11-18 18:17:05,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 18:17:05,547 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:05,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:05,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1414570585, now seen corresponding path program 1 times [2024-11-18 18:17:05,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:05,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160451734] [2024-11-18 18:17:05,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:05,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:06,778 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:06,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:06,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160451734] [2024-11-18 18:17:06,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160451734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:06,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:06,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-18 18:17:06,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786867284] [2024-11-18 18:17:06,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:06,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-18 18:17:06,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:06,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-18 18:17:06,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2024-11-18 18:17:06,782 INFO L87 Difference]: Start difference. First operand 918 states and 1270 transitions. Second operand has 18 states, 18 states have (on average 4.722222222222222) internal successors, (85), 18 states have internal predecessors, (85), 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) [2024-11-18 18:17:07,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:07,139 INFO L93 Difference]: Finished difference Result 1179 states and 1643 transitions. [2024-11-18 18:17:07,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-18 18:17:07,140 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.722222222222222) internal successors, (85), 18 states have internal predecessors, (85), 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 85 [2024-11-18 18:17:07,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:07,142 INFO L225 Difference]: With dead ends: 1179 [2024-11-18 18:17:07,143 INFO L226 Difference]: Without dead ends: 1010 [2024-11-18 18:17:07,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2024-11-18 18:17:07,146 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 93 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 2117 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:07,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 2117 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 18:17:07,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2024-11-18 18:17:07,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 998. [2024-11-18 18:17:07,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 997 states have (on average 1.3841524573721165) internal successors, (1380), 997 states have internal predecessors, (1380), 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) [2024-11-18 18:17:07,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1380 transitions. [2024-11-18 18:17:07,166 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1380 transitions. Word has length 85 [2024-11-18 18:17:07,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:07,166 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1380 transitions. [2024-11-18 18:17:07,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.722222222222222) internal successors, (85), 18 states have internal predecessors, (85), 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) [2024-11-18 18:17:07,166 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1380 transitions. [2024-11-18 18:17:07,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-18 18:17:07,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:07,168 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-18 18:17:07,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 18:17:07,168 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:07,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:07,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1141327815, now seen corresponding path program 1 times [2024-11-18 18:17:07,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:07,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581425308] [2024-11-18 18:17:07,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:07,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:07,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:07,432 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:07,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:07,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581425308] [2024-11-18 18:17:07,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581425308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:07,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:07,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 18:17:07,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954180414] [2024-11-18 18:17:07,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:07,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 18:17:07,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:07,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 18:17:07,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 18:17:07,436 INFO L87 Difference]: Start difference. First operand 998 states and 1380 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 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) [2024-11-18 18:17:07,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:07,518 INFO L93 Difference]: Finished difference Result 1520 states and 2120 transitions. [2024-11-18 18:17:07,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 18:17:07,518 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 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 85 [2024-11-18 18:17:07,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:07,521 INFO L225 Difference]: With dead ends: 1520 [2024-11-18 18:17:07,521 INFO L226 Difference]: Without dead ends: 891 [2024-11-18 18:17:07,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 18:17:07,522 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 48 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 1281 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:07,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 1281 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:17:07,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2024-11-18 18:17:07,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 891. [2024-11-18 18:17:07,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 890 states have (on average 1.3707865168539326) internal successors, (1220), 890 states have internal predecessors, (1220), 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) [2024-11-18 18:17:07,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1220 transitions. [2024-11-18 18:17:07,540 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1220 transitions. Word has length 85 [2024-11-18 18:17:07,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:07,541 INFO L471 AbstractCegarLoop]: Abstraction has 891 states and 1220 transitions. [2024-11-18 18:17:07,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 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) [2024-11-18 18:17:07,541 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1220 transitions. [2024-11-18 18:17:07,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-18 18:17:07,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:07,544 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] [2024-11-18 18:17:07,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 18:17:07,544 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:07,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:07,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1294933767, now seen corresponding path program 1 times [2024-11-18 18:17:07,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:07,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607059850] [2024-11-18 18:17:07,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:07,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:07,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:07,873 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:07,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:07,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607059850] [2024-11-18 18:17:07,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607059850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:07,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:07,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 18:17:07,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752378788] [2024-11-18 18:17:07,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:07,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 18:17:07,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:07,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 18:17:07,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 18:17:07,876 INFO L87 Difference]: Start difference. First operand 891 states and 1220 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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) [2024-11-18 18:17:07,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:07,973 INFO L93 Difference]: Finished difference Result 1209 states and 1674 transitions. [2024-11-18 18:17:07,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 18:17:07,975 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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 85 [2024-11-18 18:17:07,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:07,977 INFO L225 Difference]: With dead ends: 1209 [2024-11-18 18:17:07,977 INFO L226 Difference]: Without dead ends: 826 [2024-11-18 18:17:07,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-18 18:17:07,978 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 98 mSDsluCounter, 963 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 1129 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:07,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 1129 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:17:07,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2024-11-18 18:17:07,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 817. [2024-11-18 18:17:07,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 817 states, 816 states have (on average 1.3602941176470589) internal successors, (1110), 816 states have internal predecessors, (1110), 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) [2024-11-18 18:17:07,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1110 transitions. [2024-11-18 18:17:07,997 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1110 transitions. Word has length 85 [2024-11-18 18:17:07,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:07,997 INFO L471 AbstractCegarLoop]: Abstraction has 817 states and 1110 transitions. [2024-11-18 18:17:07,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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) [2024-11-18 18:17:07,997 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1110 transitions. [2024-11-18 18:17:07,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-18 18:17:07,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:07,998 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-18 18:17:07,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-18 18:17:07,999 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:07,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:07,999 INFO L85 PathProgramCache]: Analyzing trace with hash -382213465, now seen corresponding path program 1 times [2024-11-18 18:17:07,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:07,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026378036] [2024-11-18 18:17:07,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:08,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:08,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:08,617 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:08,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:08,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026378036] [2024-11-18 18:17:08,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026378036] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 18:17:08,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362098051] [2024-11-18 18:17:08,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:08,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 18:17:08,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 18:17:08,621 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 18:17:08,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 18:17:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:08,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-11-18 18:17:08,838 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 18:17:09,446 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:09,447 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 18:17:09,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362098051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:09,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 18:17:09,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [18] total 33 [2024-11-18 18:17:09,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968637904] [2024-11-18 18:17:09,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:09,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-18 18:17:09,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:09,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-18 18:17:09,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=988, Unknown=0, NotChecked=0, Total=1056 [2024-11-18 18:17:09,449 INFO L87 Difference]: Start difference. First operand 817 states and 1110 transitions. Second operand has 17 states, 17 states have (on average 5.0) internal successors, (85), 17 states have internal predecessors, (85), 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) [2024-11-18 18:17:09,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:09,777 INFO L93 Difference]: Finished difference Result 1058 states and 1451 transitions. [2024-11-18 18:17:09,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-18 18:17:09,778 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.0) internal successors, (85), 17 states have internal predecessors, (85), 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 85 [2024-11-18 18:17:09,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:09,780 INFO L225 Difference]: With dead ends: 1058 [2024-11-18 18:17:09,780 INFO L226 Difference]: Without dead ends: 891 [2024-11-18 18:17:09,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=90, Invalid=1316, Unknown=0, NotChecked=0, Total=1406 [2024-11-18 18:17:09,781 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 93 mSDsluCounter, 2337 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 2524 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:09,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 2524 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 18:17:09,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2024-11-18 18:17:09,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 885. [2024-11-18 18:17:09,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 884 states have (on average 1.3597285067873304) internal successors, (1202), 884 states have internal predecessors, (1202), 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) [2024-11-18 18:17:09,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1202 transitions. [2024-11-18 18:17:09,795 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1202 transitions. Word has length 85 [2024-11-18 18:17:09,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:09,795 INFO L471 AbstractCegarLoop]: Abstraction has 885 states and 1202 transitions. [2024-11-18 18:17:09,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.0) internal successors, (85), 17 states have internal predecessors, (85), 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) [2024-11-18 18:17:09,795 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1202 transitions. [2024-11-18 18:17:09,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-18 18:17:09,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:09,797 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-18 18:17:09,816 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-18 18:17:09,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 18:17:09,998 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:09,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:09,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1862311573, now seen corresponding path program 1 times [2024-11-18 18:17:09,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:09,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632749060] [2024-11-18 18:17:09,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:09,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:10,593 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:10,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:10,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632749060] [2024-11-18 18:17:10,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632749060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:10,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:10,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-18 18:17:10,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206297257] [2024-11-18 18:17:10,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:10,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-18 18:17:10,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:10,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-18 18:17:10,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-18 18:17:10,597 INFO L87 Difference]: Start difference. First operand 885 states and 1202 transitions. Second operand has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 14 states have internal predecessors, (85), 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) [2024-11-18 18:17:10,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:10,894 INFO L93 Difference]: Finished difference Result 1151 states and 1576 transitions. [2024-11-18 18:17:10,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-18 18:17:10,895 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 14 states have internal predecessors, (85), 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 85 [2024-11-18 18:17:10,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:10,897 INFO L225 Difference]: With dead ends: 1151 [2024-11-18 18:17:10,897 INFO L226 Difference]: Without dead ends: 848 [2024-11-18 18:17:10,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2024-11-18 18:17:10,899 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 197 mSDsluCounter, 1862 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 2053 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:10,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 2053 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 18:17:10,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2024-11-18 18:17:10,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 848. [2024-11-18 18:17:10,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 847 states have (on average 1.343565525383707) internal successors, (1138), 847 states have internal predecessors, (1138), 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) [2024-11-18 18:17:10,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1138 transitions. [2024-11-18 18:17:10,909 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1138 transitions. Word has length 85 [2024-11-18 18:17:10,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:10,909 INFO L471 AbstractCegarLoop]: Abstraction has 848 states and 1138 transitions. [2024-11-18 18:17:10,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 14 states have internal predecessors, (85), 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) [2024-11-18 18:17:10,910 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1138 transitions. [2024-11-18 18:17:10,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-18 18:17:10,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:10,911 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] [2024-11-18 18:17:10,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-18 18:17:10,911 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:10,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:10,914 INFO L85 PathProgramCache]: Analyzing trace with hash 6438362, now seen corresponding path program 1 times [2024-11-18 18:17:10,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:10,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298452118] [2024-11-18 18:17:10,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:10,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:10,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:11,334 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:11,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:11,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298452118] [2024-11-18 18:17:11,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298452118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:11,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:11,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-18 18:17:11,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157278886] [2024-11-18 18:17:11,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:11,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 18:17:11,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:11,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 18:17:11,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-18 18:17:11,340 INFO L87 Difference]: Start difference. First operand 848 states and 1138 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 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) [2024-11-18 18:17:11,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:11,505 INFO L93 Difference]: Finished difference Result 1159 states and 1573 transitions. [2024-11-18 18:17:11,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-18 18:17:11,505 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 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 85 [2024-11-18 18:17:11,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:11,511 INFO L225 Difference]: With dead ends: 1159 [2024-11-18 18:17:11,511 INFO L226 Difference]: Without dead ends: 895 [2024-11-18 18:17:11,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-18 18:17:11,513 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 64 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 1977 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:11,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 1977 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:17:11,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2024-11-18 18:17:11,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 889. [2024-11-18 18:17:11,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 888 states have (on average 1.3310810810810811) internal successors, (1182), 888 states have internal predecessors, (1182), 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) [2024-11-18 18:17:11,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1182 transitions. [2024-11-18 18:17:11,550 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1182 transitions. Word has length 85 [2024-11-18 18:17:11,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:11,554 INFO L471 AbstractCegarLoop]: Abstraction has 889 states and 1182 transitions. [2024-11-18 18:17:11,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 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) [2024-11-18 18:17:11,555 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1182 transitions. [2024-11-18 18:17:11,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-18 18:17:11,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:11,560 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] [2024-11-18 18:17:11,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-18 18:17:11,564 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:11,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:11,565 INFO L85 PathProgramCache]: Analyzing trace with hash 812535856, now seen corresponding path program 1 times [2024-11-18 18:17:11,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:11,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144757167] [2024-11-18 18:17:11,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:11,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:11,780 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:11,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:11,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144757167] [2024-11-18 18:17:11,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144757167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:11,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:11,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 18:17:11,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077325649] [2024-11-18 18:17:11,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:11,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 18:17:11,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:11,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 18:17:11,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 18:17:11,782 INFO L87 Difference]: Start difference. First operand 889 states and 1182 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 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) [2024-11-18 18:17:11,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:11,813 INFO L93 Difference]: Finished difference Result 1051 states and 1414 transitions. [2024-11-18 18:17:11,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 18:17:11,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 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 85 [2024-11-18 18:17:11,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:11,815 INFO L225 Difference]: With dead ends: 1051 [2024-11-18 18:17:11,815 INFO L226 Difference]: Without dead ends: 686 [2024-11-18 18:17:11,816 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:17:11,816 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 53 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:11,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 658 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:17:11,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2024-11-18 18:17:11,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 686. [2024-11-18 18:17:11,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 685 states have (on average 1.332846715328467) internal successors, (913), 685 states have internal predecessors, (913), 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) [2024-11-18 18:17:11,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 913 transitions. [2024-11-18 18:17:11,826 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 913 transitions. Word has length 85 [2024-11-18 18:17:11,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:11,827 INFO L471 AbstractCegarLoop]: Abstraction has 686 states and 913 transitions. [2024-11-18 18:17:11,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 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) [2024-11-18 18:17:11,827 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 913 transitions. [2024-11-18 18:17:11,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-18 18:17:11,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:11,828 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] [2024-11-18 18:17:11,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-18 18:17:11,828 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:11,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:11,829 INFO L85 PathProgramCache]: Analyzing trace with hash -976308674, now seen corresponding path program 1 times [2024-11-18 18:17:11,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:11,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433005736] [2024-11-18 18:17:11,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:11,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:11,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:12,148 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:12,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:12,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433005736] [2024-11-18 18:17:12,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433005736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:12,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:12,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 18:17:12,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37305440] [2024-11-18 18:17:12,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:12,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 18:17:12,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:12,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 18:17:12,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 18:17:12,150 INFO L87 Difference]: Start difference. First operand 686 states and 913 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 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) [2024-11-18 18:17:12,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:12,193 INFO L93 Difference]: Finished difference Result 981 states and 1317 transitions. [2024-11-18 18:17:12,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 18:17:12,194 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 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 86 [2024-11-18 18:17:12,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:12,196 INFO L225 Difference]: With dead ends: 981 [2024-11-18 18:17:12,196 INFO L226 Difference]: Without dead ends: 750 [2024-11-18 18:17:12,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 18:17:12,198 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 4 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:12,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1026 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:17:12,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2024-11-18 18:17:12,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2024-11-18 18:17:12,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 749 states have (on average 1.3230974632843793) internal successors, (991), 749 states have internal predecessors, (991), 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) [2024-11-18 18:17:12,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 991 transitions. [2024-11-18 18:17:12,211 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 991 transitions. Word has length 86 [2024-11-18 18:17:12,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:12,211 INFO L471 AbstractCegarLoop]: Abstraction has 750 states and 991 transitions. [2024-11-18 18:17:12,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 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) [2024-11-18 18:17:12,212 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 991 transitions. [2024-11-18 18:17:12,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-18 18:17:12,214 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:12,214 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-18 18:17:12,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-18 18:17:12,214 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:12,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:12,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1161001005, now seen corresponding path program 1 times [2024-11-18 18:17:12,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:12,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224130377] [2024-11-18 18:17:12,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:12,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:12,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:13,106 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:13,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:13,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224130377] [2024-11-18 18:17:13,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224130377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:13,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:13,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-18 18:17:13,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314253906] [2024-11-18 18:17:13,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:13,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-18 18:17:13,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:13,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-18 18:17:13,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-18 18:17:13,107 INFO L87 Difference]: Start difference. First operand 750 states and 991 transitions. Second operand has 15 states, 15 states have (on average 5.733333333333333) internal successors, (86), 15 states have internal predecessors, (86), 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) [2024-11-18 18:17:13,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:13,357 INFO L93 Difference]: Finished difference Result 1017 states and 1369 transitions. [2024-11-18 18:17:13,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 18:17:13,358 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.733333333333333) internal successors, (86), 15 states have internal predecessors, (86), 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 86 [2024-11-18 18:17:13,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:13,360 INFO L225 Difference]: With dead ends: 1017 [2024-11-18 18:17:13,360 INFO L226 Difference]: Without dead ends: 806 [2024-11-18 18:17:13,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-11-18 18:17:13,361 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 36 mSDsluCounter, 1838 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 2023 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:13,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 2023 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 18:17:13,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2024-11-18 18:17:13,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 795. [2024-11-18 18:17:13,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 795 states, 794 states have (on average 1.3287153652392947) internal successors, (1055), 794 states have internal predecessors, (1055), 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) [2024-11-18 18:17:13,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1055 transitions. [2024-11-18 18:17:13,371 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1055 transitions. Word has length 86 [2024-11-18 18:17:13,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:13,371 INFO L471 AbstractCegarLoop]: Abstraction has 795 states and 1055 transitions. [2024-11-18 18:17:13,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.733333333333333) internal successors, (86), 15 states have internal predecessors, (86), 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) [2024-11-18 18:17:13,371 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1055 transitions. [2024-11-18 18:17:13,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-18 18:17:13,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:13,372 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-18 18:17:13,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-18 18:17:13,373 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:13,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:13,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1054022121, now seen corresponding path program 1 times [2024-11-18 18:17:13,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:13,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580364966] [2024-11-18 18:17:13,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:13,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:13,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:13,851 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:13,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:13,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580364966] [2024-11-18 18:17:13,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580364966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:13,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:13,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 18:17:13,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158130444] [2024-11-18 18:17:13,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:13,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 18:17:13,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:13,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 18:17:13,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 18:17:13,853 INFO L87 Difference]: Start difference. First operand 795 states and 1055 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 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) [2024-11-18 18:17:13,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:13,913 INFO L93 Difference]: Finished difference Result 1282 states and 1718 transitions. [2024-11-18 18:17:13,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 18:17:13,914 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 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 86 [2024-11-18 18:17:13,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:13,917 INFO L225 Difference]: With dead ends: 1282 [2024-11-18 18:17:13,917 INFO L226 Difference]: Without dead ends: 954 [2024-11-18 18:17:13,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 18:17:13,918 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 29 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:13,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 1244 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:17:13,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2024-11-18 18:17:13,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 786. [2024-11-18 18:17:13,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 785 states have (on average 1.3286624203821655) internal successors, (1043), 785 states have internal predecessors, (1043), 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) [2024-11-18 18:17:13,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1043 transitions. [2024-11-18 18:17:13,929 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1043 transitions. Word has length 86 [2024-11-18 18:17:13,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:13,929 INFO L471 AbstractCegarLoop]: Abstraction has 786 states and 1043 transitions. [2024-11-18 18:17:13,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 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) [2024-11-18 18:17:13,929 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1043 transitions. [2024-11-18 18:17:13,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-18 18:17:13,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:13,930 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] [2024-11-18 18:17:13,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-18 18:17:13,930 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:13,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:13,931 INFO L85 PathProgramCache]: Analyzing trace with hash -303578103, now seen corresponding path program 1 times [2024-11-18 18:17:13,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:13,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801482960] [2024-11-18 18:17:13,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:13,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:13,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:14,657 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:14,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:14,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801482960] [2024-11-18 18:17:14,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801482960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:14,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:14,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-18 18:17:14,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339841891] [2024-11-18 18:17:14,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:14,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-18 18:17:14,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:14,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-18 18:17:14,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=340, Unknown=0, NotChecked=0, Total=380 [2024-11-18 18:17:14,660 INFO L87 Difference]: Start difference. First operand 786 states and 1043 transitions. Second operand has 20 states, 20 states have (on average 4.3) internal successors, (86), 20 states have internal predecessors, (86), 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) [2024-11-18 18:17:15,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:15,044 INFO L93 Difference]: Finished difference Result 1057 states and 1427 transitions. [2024-11-18 18:17:15,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-18 18:17:15,044 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.3) internal successors, (86), 20 states have internal predecessors, (86), 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 86 [2024-11-18 18:17:15,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:15,046 INFO L225 Difference]: With dead ends: 1057 [2024-11-18 18:17:15,046 INFO L226 Difference]: Without dead ends: 804 [2024-11-18 18:17:15,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2024-11-18 18:17:15,047 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 72 mSDsluCounter, 2765 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 2946 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:15,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 2946 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 18:17:15,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2024-11-18 18:17:15,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 802. [2024-11-18 18:17:15,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 801 states have (on average 1.3245942571785267) internal successors, (1061), 801 states have internal predecessors, (1061), 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) [2024-11-18 18:17:15,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1061 transitions. [2024-11-18 18:17:15,056 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1061 transitions. Word has length 86 [2024-11-18 18:17:15,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:15,056 INFO L471 AbstractCegarLoop]: Abstraction has 802 states and 1061 transitions. [2024-11-18 18:17:15,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.3) internal successors, (86), 20 states have internal predecessors, (86), 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) [2024-11-18 18:17:15,057 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1061 transitions. [2024-11-18 18:17:15,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-18 18:17:15,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:15,058 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-18 18:17:15,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-18 18:17:15,058 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:15,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:15,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1688022501, now seen corresponding path program 1 times [2024-11-18 18:17:15,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:15,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708636635] [2024-11-18 18:17:15,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:15,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:15,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:15,637 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:15,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:15,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708636635] [2024-11-18 18:17:15,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708636635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:15,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:15,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-18 18:17:15,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486455519] [2024-11-18 18:17:15,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:15,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-18 18:17:15,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:15,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-18 18:17:15,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2024-11-18 18:17:15,640 INFO L87 Difference]: Start difference. First operand 802 states and 1061 transitions. Second operand has 17 states, 17 states have (on average 5.0588235294117645) internal successors, (86), 17 states have internal predecessors, (86), 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) [2024-11-18 18:17:15,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:15,958 INFO L93 Difference]: Finished difference Result 1123 states and 1511 transitions. [2024-11-18 18:17:15,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-18 18:17:15,959 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.0588235294117645) internal successors, (86), 17 states have internal predecessors, (86), 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 86 [2024-11-18 18:17:15,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:15,964 INFO L225 Difference]: With dead ends: 1123 [2024-11-18 18:17:15,964 INFO L226 Difference]: Without dead ends: 832 [2024-11-18 18:17:15,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2024-11-18 18:17:15,965 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 56 mSDsluCounter, 2217 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 2389 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:15,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 2389 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 18:17:15,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2024-11-18 18:17:15,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 832. [2024-11-18 18:17:15,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 831 states have (on average 1.3176895306859207) internal successors, (1095), 831 states have internal predecessors, (1095), 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) [2024-11-18 18:17:15,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1095 transitions. [2024-11-18 18:17:15,993 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1095 transitions. Word has length 86 [2024-11-18 18:17:15,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:15,993 INFO L471 AbstractCegarLoop]: Abstraction has 832 states and 1095 transitions. [2024-11-18 18:17:15,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.0588235294117645) internal successors, (86), 17 states have internal predecessors, (86), 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) [2024-11-18 18:17:15,994 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1095 transitions. [2024-11-18 18:17:15,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-18 18:17:15,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:15,995 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] [2024-11-18 18:17:15,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-18 18:17:15,996 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:15,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:15,996 INFO L85 PathProgramCache]: Analyzing trace with hash 490423072, now seen corresponding path program 1 times [2024-11-18 18:17:15,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:15,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709630819] [2024-11-18 18:17:15,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:15,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:16,296 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:16,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:16,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709630819] [2024-11-18 18:17:16,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709630819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:16,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:16,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 18:17:16,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755693549] [2024-11-18 18:17:16,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:16,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 18:17:16,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:16,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 18:17:16,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 18:17:16,297 INFO L87 Difference]: Start difference. First operand 832 states and 1095 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 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) [2024-11-18 18:17:16,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:16,342 INFO L93 Difference]: Finished difference Result 1470 states and 1947 transitions. [2024-11-18 18:17:16,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 18:17:16,342 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 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 87 [2024-11-18 18:17:16,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:16,345 INFO L225 Difference]: With dead ends: 1470 [2024-11-18 18:17:16,345 INFO L226 Difference]: Without dead ends: 1042 [2024-11-18 18:17:16,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 18:17:16,349 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 10 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:16,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1030 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:17:16,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2024-11-18 18:17:16,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1030. [2024-11-18 18:17:16,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1030 states, 1029 states have (on average 1.2915451895043732) internal successors, (1329), 1029 states have internal predecessors, (1329), 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) [2024-11-18 18:17:16,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1329 transitions. [2024-11-18 18:17:16,380 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1329 transitions. Word has length 87 [2024-11-18 18:17:16,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:16,380 INFO L471 AbstractCegarLoop]: Abstraction has 1030 states and 1329 transitions. [2024-11-18 18:17:16,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 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) [2024-11-18 18:17:16,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1329 transitions. [2024-11-18 18:17:16,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-18 18:17:16,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:16,382 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] [2024-11-18 18:17:16,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-18 18:17:16,382 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:16,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:16,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1812859929, now seen corresponding path program 1 times [2024-11-18 18:17:16,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:16,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034425113] [2024-11-18 18:17:16,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:16,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:17,477 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:17,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:17,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034425113] [2024-11-18 18:17:17,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034425113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:17,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:17,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-18 18:17:17,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646807602] [2024-11-18 18:17:17,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:17,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-18 18:17:17,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:17,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-18 18:17:17,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-18 18:17:17,480 INFO L87 Difference]: Start difference. First operand 1030 states and 1329 transitions. Second operand has 17 states, 17 states have (on average 5.117647058823529) internal successors, (87), 17 states have internal predecessors, (87), 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) [2024-11-18 18:17:17,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:17,871 INFO L93 Difference]: Finished difference Result 1394 states and 1827 transitions. [2024-11-18 18:17:17,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-18 18:17:17,871 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.117647058823529) internal successors, (87), 17 states have internal predecessors, (87), 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 87 [2024-11-18 18:17:17,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:17,874 INFO L225 Difference]: With dead ends: 1394 [2024-11-18 18:17:17,874 INFO L226 Difference]: Without dead ends: 1054 [2024-11-18 18:17:17,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=125, Invalid=631, Unknown=0, NotChecked=0, Total=756 [2024-11-18 18:17:17,875 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 204 mSDsluCounter, 1509 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 1658 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:17,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 1658 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 18:17:17,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2024-11-18 18:17:17,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 1034. [2024-11-18 18:17:17,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 1033 states have (on average 1.2904162633107454) internal successors, (1333), 1033 states have internal predecessors, (1333), 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) [2024-11-18 18:17:17,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1333 transitions. [2024-11-18 18:17:17,886 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1333 transitions. Word has length 87 [2024-11-18 18:17:17,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:17,886 INFO L471 AbstractCegarLoop]: Abstraction has 1034 states and 1333 transitions. [2024-11-18 18:17:17,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.117647058823529) internal successors, (87), 17 states have internal predecessors, (87), 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) [2024-11-18 18:17:17,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1333 transitions. [2024-11-18 18:17:17,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-18 18:17:17,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:17,888 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] [2024-11-18 18:17:17,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-18 18:17:17,888 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:17,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:17,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1852245401, now seen corresponding path program 1 times [2024-11-18 18:17:17,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:17,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688634237] [2024-11-18 18:17:17,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:17,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:18,424 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:18,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:18,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688634237] [2024-11-18 18:17:18,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688634237] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 18:17:18,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422483875] [2024-11-18 18:17:18,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:18,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 18:17:18,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 18:17:18,428 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 18:17:18,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-18 18:17:18,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:18,664 INFO L255 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-18 18:17:18,667 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 18:17:19,020 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:19,020 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 18:17:19,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422483875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:19,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 18:17:19,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [18] total 25 [2024-11-18 18:17:19,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978367077] [2024-11-18 18:17:19,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:19,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 18:17:19,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:19,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 18:17:19,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=550, Unknown=0, NotChecked=0, Total=600 [2024-11-18 18:17:19,022 INFO L87 Difference]: Start difference. First operand 1034 states and 1333 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 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) [2024-11-18 18:17:19,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:19,131 INFO L93 Difference]: Finished difference Result 1584 states and 2089 transitions. [2024-11-18 18:17:19,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 18:17:19,132 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 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 87 [2024-11-18 18:17:19,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:19,135 INFO L225 Difference]: With dead ends: 1584 [2024-11-18 18:17:19,135 INFO L226 Difference]: Without dead ends: 1266 [2024-11-18 18:17:19,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=595, Unknown=0, NotChecked=0, Total=650 [2024-11-18 18:17:19,136 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 77 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:19,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 1422 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:17:19,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2024-11-18 18:17:19,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1230. [2024-11-18 18:17:19,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 1229 states have (on average 1.2994304312449145) internal successors, (1597), 1229 states have internal predecessors, (1597), 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) [2024-11-18 18:17:19,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1597 transitions. [2024-11-18 18:17:19,149 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1597 transitions. Word has length 87 [2024-11-18 18:17:19,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:19,149 INFO L471 AbstractCegarLoop]: Abstraction has 1230 states and 1597 transitions. [2024-11-18 18:17:19,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 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) [2024-11-18 18:17:19,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1597 transitions. [2024-11-18 18:17:19,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-18 18:17:19,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:19,151 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] [2024-11-18 18:17:19,167 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-18 18:17:19,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 18:17:19,352 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:19,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:19,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1202821329, now seen corresponding path program 1 times [2024-11-18 18:17:19,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:19,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198510624] [2024-11-18 18:17:19,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:19,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:20,186 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:20,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:20,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198510624] [2024-11-18 18:17:20,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198510624] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 18:17:20,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222741682] [2024-11-18 18:17:20,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:20,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 18:17:20,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 18:17:20,191 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 18:17:20,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-18 18:17:20,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:20,452 INFO L255 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 105 conjuncts are in the unsatisfiable core [2024-11-18 18:17:20,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 18:17:21,714 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:21,715 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 18:17:23,827 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:23,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [222741682] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 18:17:23,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 18:17:23,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 29, 27] total 74 [2024-11-18 18:17:23,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818832739] [2024-11-18 18:17:23,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 18:17:23,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2024-11-18 18:17:23,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:23,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2024-11-18 18:17:23,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=632, Invalid=4770, Unknown=0, NotChecked=0, Total=5402 [2024-11-18 18:17:23,832 INFO L87 Difference]: Start difference. First operand 1230 states and 1597 transitions. Second operand has 74 states, 74 states have (on average 3.3378378378378377) internal successors, (247), 74 states have internal predecessors, (247), 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) [2024-11-18 18:17:29,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:29,762 INFO L93 Difference]: Finished difference Result 2314 states and 3111 transitions. [2024-11-18 18:17:29,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2024-11-18 18:17:29,763 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 74 states have (on average 3.3378378378378377) internal successors, (247), 74 states have internal predecessors, (247), 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 87 [2024-11-18 18:17:29,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:29,767 INFO L225 Difference]: With dead ends: 2314 [2024-11-18 18:17:29,767 INFO L226 Difference]: Without dead ends: 1907 [2024-11-18 18:17:29,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9296 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=3248, Invalid=31534, Unknown=0, NotChecked=0, Total=34782 [2024-11-18 18:17:29,775 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 3374 mSDsluCounter, 8505 mSDsCounter, 0 mSdLazyCounter, 4070 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3374 SdHoareTripleChecker+Valid, 8755 SdHoareTripleChecker+Invalid, 4133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 4070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:29,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3374 Valid, 8755 Invalid, 4133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 4070 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-18 18:17:29,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1907 states. [2024-11-18 18:17:29,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1907 to 1525. [2024-11-18 18:17:29,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 1524 states have (on average 1.3116797900262467) internal successors, (1999), 1524 states have internal predecessors, (1999), 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) [2024-11-18 18:17:29,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 1999 transitions. [2024-11-18 18:17:29,792 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 1999 transitions. Word has length 87 [2024-11-18 18:17:29,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:29,792 INFO L471 AbstractCegarLoop]: Abstraction has 1525 states and 1999 transitions. [2024-11-18 18:17:29,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 3.3378378378378377) internal successors, (247), 74 states have internal predecessors, (247), 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) [2024-11-18 18:17:29,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 1999 transitions. [2024-11-18 18:17:29,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-18 18:17:29,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:29,794 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-18 18:17:29,808 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-18 18:17:29,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-18 18:17:29,999 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:29,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:30,000 INFO L85 PathProgramCache]: Analyzing trace with hash 178883271, now seen corresponding path program 1 times [2024-11-18 18:17:30,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:30,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676733681] [2024-11-18 18:17:30,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:30,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:30,248 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:30,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:30,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676733681] [2024-11-18 18:17:30,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676733681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:30,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:30,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 18:17:30,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478854376] [2024-11-18 18:17:30,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:30,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 18:17:30,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:30,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 18:17:30,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 18:17:30,251 INFO L87 Difference]: Start difference. First operand 1525 states and 1999 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 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) [2024-11-18 18:17:30,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:30,335 INFO L93 Difference]: Finished difference Result 2259 states and 3036 transitions. [2024-11-18 18:17:30,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 18:17:30,336 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 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 87 [2024-11-18 18:17:30,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:30,339 INFO L225 Difference]: With dead ends: 2259 [2024-11-18 18:17:30,339 INFO L226 Difference]: Without dead ends: 1648 [2024-11-18 18:17:30,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 18:17:30,340 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 11 mSDsluCounter, 1260 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1447 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 [2024-11-18 18:17:30,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1447 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:17:30,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2024-11-18 18:17:30,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 1628. [2024-11-18 18:17:30,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 1627 states have (on average 1.3097725875845114) internal successors, (2131), 1627 states have internal predecessors, (2131), 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) [2024-11-18 18:17:30,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 2131 transitions. [2024-11-18 18:17:30,361 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 2131 transitions. Word has length 87 [2024-11-18 18:17:30,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:30,361 INFO L471 AbstractCegarLoop]: Abstraction has 1628 states and 2131 transitions. [2024-11-18 18:17:30,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 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) [2024-11-18 18:17:30,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2131 transitions. [2024-11-18 18:17:30,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-18 18:17:30,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:30,363 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] [2024-11-18 18:17:30,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-18 18:17:30,364 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:30,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:30,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1801897753, now seen corresponding path program 1 times [2024-11-18 18:17:30,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:30,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112432922] [2024-11-18 18:17:30,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:30,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:30,494 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:30,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:30,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112432922] [2024-11-18 18:17:30,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112432922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:30,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:30,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 18:17:30,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41704654] [2024-11-18 18:17:30,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:30,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 18:17:30,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:30,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 18:17:30,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 18:17:30,497 INFO L87 Difference]: Start difference. First operand 1628 states and 2131 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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) [2024-11-18 18:17:30,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:30,532 INFO L93 Difference]: Finished difference Result 3197 states and 4183 transitions. [2024-11-18 18:17:30,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 18:17:30,533 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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 87 [2024-11-18 18:17:30,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:30,539 INFO L225 Difference]: With dead ends: 3197 [2024-11-18 18:17:30,539 INFO L226 Difference]: Without dead ends: 1617 [2024-11-18 18:17:30,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:17:30,541 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 53 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:30,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 657 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:17:30,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2024-11-18 18:17:30,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1617. [2024-11-18 18:17:30,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1616 states have (on average 1.306930693069307) internal successors, (2112), 1616 states have internal predecessors, (2112), 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) [2024-11-18 18:17:30,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2112 transitions. [2024-11-18 18:17:30,557 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2112 transitions. Word has length 87 [2024-11-18 18:17:30,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:30,558 INFO L471 AbstractCegarLoop]: Abstraction has 1617 states and 2112 transitions. [2024-11-18 18:17:30,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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) [2024-11-18 18:17:30,558 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2112 transitions. [2024-11-18 18:17:30,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-18 18:17:30,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:30,559 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] [2024-11-18 18:17:30,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-18 18:17:30,560 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:30,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:30,560 INFO L85 PathProgramCache]: Analyzing trace with hash 515411624, now seen corresponding path program 1 times [2024-11-18 18:17:30,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:30,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801573072] [2024-11-18 18:17:30,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:30,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:30,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:30,848 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:30,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:30,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801573072] [2024-11-18 18:17:30,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801573072] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 18:17:30,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897319289] [2024-11-18 18:17:30,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:30,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 18:17:30,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 18:17:30,850 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 18:17:30,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-18 18:17:31,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:31,083 INFO L255 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-18 18:17:31,086 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 18:17:31,156 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:31,157 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 18:17:31,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897319289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:31,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 18:17:31,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 17 [2024-11-18 18:17:31,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560230594] [2024-11-18 18:17:31,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:31,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 18:17:31,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:31,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 18:17:31,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2024-11-18 18:17:31,158 INFO L87 Difference]: Start difference. First operand 1617 states and 2112 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 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) [2024-11-18 18:17:31,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:31,232 INFO L93 Difference]: Finished difference Result 3200 states and 4180 transitions. [2024-11-18 18:17:31,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 18:17:31,233 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 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 87 [2024-11-18 18:17:31,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:31,235 INFO L225 Difference]: With dead ends: 3200 [2024-11-18 18:17:31,235 INFO L226 Difference]: Without dead ends: 1619 [2024-11-18 18:17:31,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2024-11-18 18:17:31,236 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 117 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:31,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 988 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:17:31,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2024-11-18 18:17:31,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 1619. [2024-11-18 18:17:31,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1619 states, 1618 states have (on average 1.3065512978986402) internal successors, (2114), 1618 states have internal predecessors, (2114), 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) [2024-11-18 18:17:31,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 2114 transitions. [2024-11-18 18:17:31,252 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 2114 transitions. Word has length 87 [2024-11-18 18:17:31,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:31,252 INFO L471 AbstractCegarLoop]: Abstraction has 1619 states and 2114 transitions. [2024-11-18 18:17:31,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 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) [2024-11-18 18:17:31,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 2114 transitions. [2024-11-18 18:17:31,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-18 18:17:31,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:31,253 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] [2024-11-18 18:17:31,269 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-18 18:17:31,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-18 18:17:31,456 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:31,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:31,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1554612603, now seen corresponding path program 1 times [2024-11-18 18:17:31,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:31,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039724777] [2024-11-18 18:17:31,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:31,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:31,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:32,123 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:32,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:32,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039724777] [2024-11-18 18:17:32,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039724777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:32,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:32,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-18 18:17:32,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933004026] [2024-11-18 18:17:32,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:32,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 18:17:32,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:32,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 18:17:32,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-18 18:17:32,126 INFO L87 Difference]: Start difference. First operand 1619 states and 2114 transitions. Second operand has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 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) [2024-11-18 18:17:32,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:32,267 INFO L93 Difference]: Finished difference Result 2459 states and 3288 transitions. [2024-11-18 18:17:32,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 18:17:32,267 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 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 88 [2024-11-18 18:17:32,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:32,270 INFO L225 Difference]: With dead ends: 2459 [2024-11-18 18:17:32,270 INFO L226 Difference]: Without dead ends: 1650 [2024-11-18 18:17:32,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-18 18:17:32,272 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 32 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 1500 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:32,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 1500 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:17:32,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2024-11-18 18:17:32,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 1644. [2024-11-18 18:17:32,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1644 states, 1643 states have (on average 1.3164942178940962) internal successors, (2163), 1643 states have internal predecessors, (2163), 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) [2024-11-18 18:17:32,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1644 states to 1644 states and 2163 transitions. [2024-11-18 18:17:32,301 INFO L78 Accepts]: Start accepts. Automaton has 1644 states and 2163 transitions. Word has length 88 [2024-11-18 18:17:32,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:32,301 INFO L471 AbstractCegarLoop]: Abstraction has 1644 states and 2163 transitions. [2024-11-18 18:17:32,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 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) [2024-11-18 18:17:32,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1644 states and 2163 transitions. [2024-11-18 18:17:32,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-18 18:17:32,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:32,303 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] [2024-11-18 18:17:32,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-18 18:17:32,303 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:32,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:32,304 INFO L85 PathProgramCache]: Analyzing trace with hash 475948386, now seen corresponding path program 1 times [2024-11-18 18:17:32,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:32,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820642696] [2024-11-18 18:17:32,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:32,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:32,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:32,408 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:32,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:32,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820642696] [2024-11-18 18:17:32,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820642696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:32,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:32,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 18:17:32,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387717953] [2024-11-18 18:17:32,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:32,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 18:17:32,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:32,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 18:17:32,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 18:17:32,410 INFO L87 Difference]: Start difference. First operand 1644 states and 2163 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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) [2024-11-18 18:17:32,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:32,444 INFO L93 Difference]: Finished difference Result 2681 states and 3570 transitions. [2024-11-18 18:17:32,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 18:17:32,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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 88 [2024-11-18 18:17:32,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:32,446 INFO L225 Difference]: With dead ends: 2681 [2024-11-18 18:17:32,446 INFO L226 Difference]: Without dead ends: 1448 [2024-11-18 18:17:32,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:17:32,447 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 47 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:32,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 657 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:17:32,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2024-11-18 18:17:32,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1448. [2024-11-18 18:17:32,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 1.294402211472011) internal successors, (1873), 1447 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) [2024-11-18 18:17:32,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 1873 transitions. [2024-11-18 18:17:32,459 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 1873 transitions. Word has length 88 [2024-11-18 18:17:32,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:32,459 INFO L471 AbstractCegarLoop]: Abstraction has 1448 states and 1873 transitions. [2024-11-18 18:17:32,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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) [2024-11-18 18:17:32,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 1873 transitions. [2024-11-18 18:17:32,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-18 18:17:32,460 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:32,460 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-18 18:17:32,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-18 18:17:32,461 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:32,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:32,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1114785143, now seen corresponding path program 1 times [2024-11-18 18:17:32,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:32,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423532048] [2024-11-18 18:17:32,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:32,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:32,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:32,863 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:32,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:32,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423532048] [2024-11-18 18:17:32,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423532048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:32,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:32,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-18 18:17:32,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634804934] [2024-11-18 18:17:32,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:32,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-18 18:17:32,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:32,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-18 18:17:32,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-18 18:17:32,865 INFO L87 Difference]: Start difference. First operand 1448 states and 1873 transitions. Second operand has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 12 states have internal predecessors, (88), 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) [2024-11-18 18:17:32,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:32,992 INFO L93 Difference]: Finished difference Result 2245 states and 2995 transitions. [2024-11-18 18:17:32,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 18:17:32,993 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 12 states have internal predecessors, (88), 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 88 [2024-11-18 18:17:32,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:32,994 INFO L225 Difference]: With dead ends: 2245 [2024-11-18 18:17:32,995 INFO L226 Difference]: Without dead ends: 1423 [2024-11-18 18:17:32,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-18 18:17:32,996 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 47 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1527 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:32,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 1527 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:17:32,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1423 states. [2024-11-18 18:17:33,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1423 to 1390. [2024-11-18 18:17:33,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1389 states have (on average 1.2994960403167746) internal successors, (1805), 1389 states have internal predecessors, (1805), 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) [2024-11-18 18:17:33,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 1805 transitions. [2024-11-18 18:17:33,007 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 1805 transitions. Word has length 88 [2024-11-18 18:17:33,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:33,008 INFO L471 AbstractCegarLoop]: Abstraction has 1390 states and 1805 transitions. [2024-11-18 18:17:33,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 12 states have internal predecessors, (88), 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) [2024-11-18 18:17:33,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 1805 transitions. [2024-11-18 18:17:33,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-18 18:17:33,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:33,009 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-18 18:17:33,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-18 18:17:33,009 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:33,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:33,010 INFO L85 PathProgramCache]: Analyzing trace with hash 2146959409, now seen corresponding path program 1 times [2024-11-18 18:17:33,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:33,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324207784] [2024-11-18 18:17:33,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:33,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:33,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:33,705 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:33,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:33,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324207784] [2024-11-18 18:17:33,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324207784] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 18:17:33,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882963528] [2024-11-18 18:17:33,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:33,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 18:17:33,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 18:17:33,707 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 18:17:33,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-18 18:17:33,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:34,008 INFO L255 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-18 18:17:34,010 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 18:17:34,429 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:34,429 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 18:17:35,040 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:35,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882963528] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 18:17:35,041 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 18:17:35,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 17] total 47 [2024-11-18 18:17:35,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196059601] [2024-11-18 18:17:35,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 18:17:35,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-11-18 18:17:35,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:35,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-11-18 18:17:35,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=1957, Unknown=0, NotChecked=0, Total=2162 [2024-11-18 18:17:35,043 INFO L87 Difference]: Start difference. First operand 1390 states and 1805 transitions. Second operand has 47 states, 47 states have (on average 5.212765957446808) internal successors, (245), 47 states have internal predecessors, (245), 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) [2024-11-18 18:17:36,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:36,301 INFO L93 Difference]: Finished difference Result 3068 states and 4179 transitions. [2024-11-18 18:17:36,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-18 18:17:36,302 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 5.212765957446808) internal successors, (245), 47 states have internal predecessors, (245), 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 88 [2024-11-18 18:17:36,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:36,305 INFO L225 Difference]: With dead ends: 3068 [2024-11-18 18:17:36,305 INFO L226 Difference]: Without dead ends: 2297 [2024-11-18 18:17:36,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 813 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=402, Invalid=4568, Unknown=0, NotChecked=0, Total=4970 [2024-11-18 18:17:36,307 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 333 mSDsluCounter, 4113 mSDsCounter, 0 mSdLazyCounter, 1419 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 4267 SdHoareTripleChecker+Invalid, 1433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:36,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 4267 Invalid, 1433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1419 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 18:17:36,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2297 states. [2024-11-18 18:17:36,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2297 to 1871. [2024-11-18 18:17:36,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1871 states, 1870 states have (on average 1.3363636363636364) internal successors, (2499), 1870 states have internal predecessors, (2499), 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) [2024-11-18 18:17:36,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1871 states to 1871 states and 2499 transitions. [2024-11-18 18:17:36,325 INFO L78 Accepts]: Start accepts. Automaton has 1871 states and 2499 transitions. Word has length 88 [2024-11-18 18:17:36,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:36,326 INFO L471 AbstractCegarLoop]: Abstraction has 1871 states and 2499 transitions. [2024-11-18 18:17:36,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 5.212765957446808) internal successors, (245), 47 states have internal predecessors, (245), 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) [2024-11-18 18:17:36,326 INFO L276 IsEmpty]: Start isEmpty. Operand 1871 states and 2499 transitions. [2024-11-18 18:17:36,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-18 18:17:36,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:36,327 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-18 18:17:36,342 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-18 18:17:36,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 18:17:36,528 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:36,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:36,529 INFO L85 PathProgramCache]: Analyzing trace with hash -36979945, now seen corresponding path program 1 times [2024-11-18 18:17:36,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:36,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094661023] [2024-11-18 18:17:36,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:36,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:36,859 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:36,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:36,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094661023] [2024-11-18 18:17:36,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094661023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:36,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:36,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-18 18:17:36,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176449494] [2024-11-18 18:17:36,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:36,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-18 18:17:36,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:36,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-18 18:17:36,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-11-18 18:17:36,860 INFO L87 Difference]: Start difference. First operand 1871 states and 2499 transitions. Second operand has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 12 states have internal predecessors, (88), 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) [2024-11-18 18:17:37,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:37,094 INFO L93 Difference]: Finished difference Result 3157 states and 4318 transitions. [2024-11-18 18:17:37,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 18:17:37,095 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 12 states have internal predecessors, (88), 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 88 [2024-11-18 18:17:37,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:37,097 INFO L225 Difference]: With dead ends: 3157 [2024-11-18 18:17:37,097 INFO L226 Difference]: Without dead ends: 1871 [2024-11-18 18:17:37,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2024-11-18 18:17:37,100 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 89 mSDsluCounter, 1460 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 1629 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:37,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 1629 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:17:37,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1871 states. [2024-11-18 18:17:37,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1871 to 1871. [2024-11-18 18:17:37,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1871 states, 1870 states have (on average 1.3352941176470587) internal successors, (2497), 1870 states have internal predecessors, (2497), 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) [2024-11-18 18:17:37,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1871 states to 1871 states and 2497 transitions. [2024-11-18 18:17:37,119 INFO L78 Accepts]: Start accepts. Automaton has 1871 states and 2497 transitions. Word has length 88 [2024-11-18 18:17:37,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:37,120 INFO L471 AbstractCegarLoop]: Abstraction has 1871 states and 2497 transitions. [2024-11-18 18:17:37,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 12 states have internal predecessors, (88), 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) [2024-11-18 18:17:37,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1871 states and 2497 transitions. [2024-11-18 18:17:37,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-18 18:17:37,126 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:37,126 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] [2024-11-18 18:17:37,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-18 18:17:37,126 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:37,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:37,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1541604825, now seen corresponding path program 1 times [2024-11-18 18:17:37,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:37,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399699713] [2024-11-18 18:17:37,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:37,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:37,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:37,375 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:37,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:17:37,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399699713] [2024-11-18 18:17:37,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399699713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:37,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:37,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 18:17:37,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497279504] [2024-11-18 18:17:37,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:37,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 18:17:37,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:17:37,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 18:17:37,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:17:37,377 INFO L87 Difference]: Start difference. First operand 1871 states and 2497 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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) [2024-11-18 18:17:37,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:37,424 INFO L93 Difference]: Finished difference Result 3348 states and 4526 transitions. [2024-11-18 18:17:37,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 18:17:37,425 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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 88 [2024-11-18 18:17:37,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:37,427 INFO L225 Difference]: With dead ends: 3348 [2024-11-18 18:17:37,427 INFO L226 Difference]: Without dead ends: 1511 [2024-11-18 18:17:37,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-18 18:17:37,433 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 61 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:37,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 823 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:17:37,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1511 states. [2024-11-18 18:17:37,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1511 to 1511. [2024-11-18 18:17:37,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1511 states, 1510 states have (on average 1.371523178807947) internal successors, (2071), 1510 states have internal predecessors, (2071), 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) [2024-11-18 18:17:37,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 2071 transitions. [2024-11-18 18:17:37,467 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 2071 transitions. Word has length 88 [2024-11-18 18:17:37,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:37,468 INFO L471 AbstractCegarLoop]: Abstraction has 1511 states and 2071 transitions. [2024-11-18 18:17:37,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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) [2024-11-18 18:17:37,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 2071 transitions. [2024-11-18 18:17:37,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-18 18:17:37,468 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:37,469 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-18 18:17:37,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-18 18:17:37,469 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:37,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:37,469 INFO L85 PathProgramCache]: Analyzing trace with hash -599189839, now seen corresponding path program 1 times [2024-11-18 18:17:37,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:17:37,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942006020] [2024-11-18 18:17:37,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:37,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:17:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 18:17:37,658 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-18 18:17:37,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 18:17:37,950 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-18 18:17:37,950 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-18 18:17:37,951 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 18:17:37,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-18 18:17:37,960 INFO L407 BasicCegarLoop]: Path program 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] [2024-11-18 18:17:38,011 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 18:17:38,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 06:17:38 BoogieIcfgContainer [2024-11-18 18:17:38,013 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 18:17:38,014 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 18:17:38,014 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 18:17:38,014 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 18:17:38,014 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:16:44" (3/4) ... [2024-11-18 18:17:38,016 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-18 18:17:38,017 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 18:17:38,017 INFO L158 Benchmark]: Toolchain (without parser) took 54597.54ms. Allocated memory was 142.6MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 72.7MB in the beginning and 1.3GB in the end (delta: -1.2GB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 18:17:38,017 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 142.6MB. Free memory is still 97.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 18:17:38,017 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.17ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 72.6MB in the beginning and 184.1MB in the end (delta: -111.6MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2024-11-18 18:17:38,017 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.32ms. Allocated memory is still 218.1MB. Free memory was 184.1MB in the beginning and 172.6MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-18 18:17:38,017 INFO L158 Benchmark]: Boogie Preprocessor took 79.68ms. Allocated memory is still 218.1MB. Free memory was 172.6MB in the beginning and 166.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-18 18:17:38,018 INFO L158 Benchmark]: RCFGBuilder took 706.24ms. Allocated memory is still 218.1MB. Free memory was 166.3MB in the beginning and 105.5MB in the end (delta: 60.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2024-11-18 18:17:38,018 INFO L158 Benchmark]: TraceAbstraction took 53377.42ms. Allocated memory was 218.1MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 105.5MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 722.4MB. Max. memory is 16.1GB. [2024-11-18 18:17:38,018 INFO L158 Benchmark]: Witness Printer took 3.08ms. Allocated memory is still 1.3GB. Free memory is still 1.3GB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 18:17:38,018 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 142.6MB. Free memory is still 97.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 357.17ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 72.6MB in the beginning and 184.1MB in the end (delta: -111.6MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.32ms. Allocated memory is still 218.1MB. Free memory was 184.1MB in the beginning and 172.6MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.68ms. Allocated memory is still 218.1MB. Free memory was 172.6MB in the beginning and 166.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 706.24ms. Allocated memory is still 218.1MB. Free memory was 166.3MB in the beginning and 105.5MB in the end (delta: 60.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * TraceAbstraction took 53377.42ms. Allocated memory was 218.1MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 105.5MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 722.4MB. Max. memory is 16.1GB. * Witness Printer took 3.08ms. Allocated memory is still 1.3GB. Free memory is still 1.3GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 173, overapproximation of bitwiseAnd at line 113. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 3); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (3 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 1); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (1 - 1); [L32] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 8); [L33] const SORT_12 msb_SORT_12 = (SORT_12)1 << (8 - 1); [L35] const SORT_3 var_14 = 0; [L36] const SORT_3 var_30 = 1; [L38] SORT_1 input_2; [L39] SORT_3 input_4; [L40] SORT_3 input_5; [L41] SORT_3 input_6; [L42] SORT_3 input_7; [L43] SORT_3 input_8; [L44] SORT_3 input_9; [L45] SORT_3 input_10; [L46] SORT_3 input_11; [L47] SORT_12 input_13; [L48] SORT_12 input_34; [L49] SORT_12 input_36; [L50] SORT_3 input_38; [L51] SORT_12 input_100; [L52] SORT_3 input_102; [L53] SORT_1 input_105; [L54] SORT_3 input_107; [L55] SORT_3 input_109; [L56] SORT_3 input_111; [L57] SORT_3 input_113; [L59] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_3=1, var_14=0, var_30=1] [L59] SORT_3 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L60] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_3=1, var_14=0, var_30=1] [L60] SORT_3 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L61] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_3=1, var_14=0, var_30=1] [L61] SORT_3 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L62] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_3=1, var_14=0, var_30=1] [L62] SORT_3 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L64] SORT_3 init_16_arg_1 = var_14; [L65] state_15 = init_16_arg_1 [L66] SORT_3 init_18_arg_1 = var_14; [L67] state_17 = init_18_arg_1 [L68] SORT_3 init_21_arg_1 = var_14; [L69] state_20 = init_21_arg_1 [L70] SORT_3 init_25_arg_1 = var_14; [L71] state_24 = init_25_arg_1 VAL [mask_SORT_3=1, state_15=0, state_17=0, state_20=0, state_24=0, var_30=1] [L74] input_2 = __VERIFIER_nondet_uchar() [L75] input_4 = __VERIFIER_nondet_uchar() [L76] input_5 = __VERIFIER_nondet_uchar() [L77] input_6 = __VERIFIER_nondet_uchar() [L78] input_7 = __VERIFIER_nondet_uchar() [L79] input_8 = __VERIFIER_nondet_uchar() [L80] input_9 = __VERIFIER_nondet_uchar() [L81] input_10 = __VERIFIER_nondet_uchar() [L82] input_11 = __VERIFIER_nondet_uchar() [L83] input_13 = __VERIFIER_nondet_uchar() [L84] input_34 = __VERIFIER_nondet_uchar() [L85] input_36 = __VERIFIER_nondet_uchar() [L86] input_38 = __VERIFIER_nondet_uchar() [L87] input_100 = __VERIFIER_nondet_uchar() [L88] input_102 = __VERIFIER_nondet_uchar() [L89] input_105 = __VERIFIER_nondet_uchar() [L90] input_107 = __VERIFIER_nondet_uchar() [L91] input_109 = __VERIFIER_nondet_uchar() [L92] input_111 = __VERIFIER_nondet_uchar() [L93] input_113 = __VERIFIER_nondet_uchar() [L96] SORT_3 var_19_arg_0 = state_15; [L97] SORT_3 var_19_arg_1 = state_17; VAL [mask_SORT_3=1, state_15=0, state_17=0, state_20=0, state_24=0, var_19_arg_0=0, var_19_arg_1=0, var_30=1] [L98] EXPR var_19_arg_0 | var_19_arg_1 VAL [mask_SORT_3=1, state_15=0, state_17=0, state_20=0, state_24=0, var_30=1] [L98] SORT_3 var_19 = var_19_arg_0 | var_19_arg_1; [L99] SORT_3 var_22_arg_0 = var_19; [L100] SORT_3 var_22_arg_1 = state_20; VAL [mask_SORT_3=1, state_15=0, state_17=0, state_20=0, state_24=0, var_22_arg_0=0, var_22_arg_1=0, var_30=1] [L101] EXPR var_22_arg_0 | var_22_arg_1 VAL [mask_SORT_3=1, state_15=0, state_17=0, state_20=0, state_24=0, var_30=1] [L101] SORT_3 var_22 = var_22_arg_0 | var_22_arg_1; [L102] SORT_3 var_23_arg_0 = var_22; [L103] SORT_3 var_23 = ~var_23_arg_0; [L104] SORT_3 var_26_arg_0 = state_24; [L105] SORT_3 var_26 = ~var_26_arg_0; [L106] SORT_3 var_27_arg_0 = var_23; [L107] SORT_3 var_27_arg_1 = var_26; VAL [mask_SORT_3=1, state_15=0, state_17=0, state_20=0, var_27_arg_0=-1, var_27_arg_1=-1, var_30=1] [L108] EXPR var_27_arg_0 | var_27_arg_1 VAL [mask_SORT_3=1, state_15=0, state_17=0, state_20=0, var_30=1] [L108] SORT_3 var_27 = var_27_arg_0 | var_27_arg_1; [L109] SORT_3 var_31_arg_0 = var_27; [L110] SORT_3 var_31 = ~var_31_arg_0; [L111] SORT_3 var_32_arg_0 = var_30; [L112] SORT_3 var_32_arg_1 = var_31; VAL [mask_SORT_3=1, state_15=0, state_17=0, state_20=0, var_30=1, var_32_arg_0=1, var_32_arg_1=-256] [L113] EXPR var_32_arg_0 & var_32_arg_1 VAL [mask_SORT_3=1, state_15=0, state_17=0, state_20=0, var_30=1] [L113] SORT_3 var_32 = var_32_arg_0 & var_32_arg_1; [L114] EXPR var_32 & mask_SORT_3 VAL [mask_SORT_3=1, state_15=0, state_17=0, state_20=0, var_30=1] [L114] var_32 = var_32 & mask_SORT_3 [L115] SORT_3 bad_33_arg_0 = var_32; [L116] CALL __VERIFIER_assert(!(bad_33_arg_0)) [L21] COND FALSE !(!(cond)) [L116] RET __VERIFIER_assert(!(bad_33_arg_0)) [L118] SORT_3 var_40_arg_0 = state_17; [L119] SORT_3 var_40 = ~var_40_arg_0; [L120] SORT_3 var_41_arg_0 = state_15; [L121] SORT_3 var_41 = ~var_41_arg_0; [L122] SORT_3 var_42_arg_0 = var_41; [L123] SORT_3 var_42_arg_1 = state_20; VAL [mask_SORT_3=1, state_15=0, state_17=0, state_20=0, var_30=1, var_40=-1, var_41=-1, var_42_arg_0=-1, var_42_arg_1=0] [L124] EXPR var_42_arg_0 & var_42_arg_1 VAL [mask_SORT_3=1, state_15=0, state_17=0, state_20=0, var_30=1, var_40=-1, var_41=-1] [L124] SORT_3 var_42 = var_42_arg_0 & var_42_arg_1; [L125] SORT_3 var_43_arg_0 = var_42; [L126] SORT_3 var_43 = ~var_43_arg_0; [L127] SORT_3 var_44_arg_0 = var_40; [L128] SORT_3 var_44_arg_1 = var_43; VAL [mask_SORT_3=1, state_15=0, state_17=0, state_20=0, var_30=1, var_40=-1, var_41=-1, var_44_arg_0=-1, var_44_arg_1=-1] [L129] EXPR var_44_arg_0 | var_44_arg_1 VAL [mask_SORT_3=1, state_15=0, state_17=0, state_20=0, var_30=1, var_40=-1, var_41=-1] [L129] SORT_3 var_44 = var_44_arg_0 | var_44_arg_1; [L130] SORT_3 var_45_arg_0 = var_44; [L131] SORT_3 var_45 = ~var_45_arg_0; [L132] SORT_3 var_46_arg_0 = state_17; [L133] SORT_3 var_46_arg_1 = state_20; VAL [mask_SORT_3=1, state_15=0, state_17=0, state_20=0, var_30=1, var_40=-1, var_41=-1, var_45=-256, var_46_arg_0=0, var_46_arg_1=0] [L134] EXPR var_46_arg_0 & var_46_arg_1 VAL [mask_SORT_3=1, state_15=0, state_17=0, state_20=0, var_30=1, var_40=-1, var_41=-1, var_45=-256] [L134] SORT_3 var_46 = var_46_arg_0 & var_46_arg_1; [L135] SORT_3 var_47_arg_0 = var_41; [L136] SORT_3 var_47_arg_1 = var_46; VAL [mask_SORT_3=1, state_15=0, state_17=0, state_20=0, var_30=1, var_40=-1, var_45=-256, var_47_arg_0=-1, var_47_arg_1=0] [L137] EXPR var_47_arg_0 | var_47_arg_1 VAL [mask_SORT_3=1, state_15=0, state_17=0, state_20=0, var_30=1, var_40=-1, var_45=-256] [L137] SORT_3 var_47 = var_47_arg_0 | var_47_arg_1; [L138] SORT_3 var_48_arg_0 = var_47; [L139] SORT_3 var_48 = ~var_48_arg_0; [L140] SORT_3 var_49_arg_0 = var_45; [L141] SORT_3 var_49_arg_1 = var_48; VAL [mask_SORT_3=1, state_15=0, state_17=0, state_20=0, var_30=1, var_40=-1, var_49_arg_0=-256, var_49_arg_1=-256] [L142] EXPR var_49_arg_0 | var_49_arg_1 VAL [mask_SORT_3=1, state_15=0, state_17=0, state_20=0, var_30=1, var_40=-1] [L142] SORT_3 var_49 = var_49_arg_0 | var_49_arg_1; [L143] SORT_3 next_115_arg_1 = var_49; [L144] SORT_3 var_51_arg_0 = state_20; [L145] SORT_3 var_51 = ~var_51_arg_0; [L146] SORT_3 var_52_arg_0 = state_17; [L147] SORT_3 var_52_arg_1 = var_51; VAL [mask_SORT_3=1, next_115_arg_1=0, state_15=0, state_17=0, state_20=0, var_30=1, var_40=-1, var_51=-1, var_52_arg_0=0, var_52_arg_1=-1] [L148] EXPR var_52_arg_0 | var_52_arg_1 VAL [mask_SORT_3=1, next_115_arg_1=0, state_15=0, state_17=0, state_20=0, var_30=1, var_40=-1, var_51=-1] [L148] SORT_3 var_52 = var_52_arg_0 | var_52_arg_1; [L149] SORT_3 var_53_arg_0 = state_17; [L150] SORT_3 var_53_arg_1 = var_51; VAL [mask_SORT_3=1, next_115_arg_1=0, state_15=0, state_17=0, state_20=0, var_30=1, var_40=-1, var_51=-1, var_52=255, var_53_arg_0=0, var_53_arg_1=-1] [L151] EXPR var_53_arg_0 & var_53_arg_1 VAL [mask_SORT_3=1, next_115_arg_1=0, state_15=0, state_17=0, state_20=0, var_30=1, var_40=-1, var_51=-1, var_52=255] [L151] SORT_3 var_53 = var_53_arg_0 & var_53_arg_1; [L152] SORT_3 var_54_arg_0 = var_53; [L153] SORT_3 var_54 = ~var_54_arg_0; [L154] SORT_3 var_55_arg_0 = var_52; [L155] SORT_3 var_55_arg_1 = var_54; VAL [mask_SORT_3=1, next_115_arg_1=0, state_15=0, state_17=0, state_20=0, var_30=1, var_40=-1, var_51=-1, var_55_arg_0=255, var_55_arg_1=-1] [L156] EXPR var_55_arg_0 & var_55_arg_1 VAL [mask_SORT_3=1, next_115_arg_1=0, state_15=0, state_17=0, state_20=0, var_30=1, var_40=-1, var_51=-1] [L156] SORT_3 var_55 = var_55_arg_0 & var_55_arg_1; [L157] SORT_3 var_56_arg_0 = var_55; [L158] SORT_3 var_56 = ~var_56_arg_0; [L159] SORT_3 next_116_arg_1 = var_56; [L160] SORT_1 var_58_arg_0 = input_2; [L161] SORT_3 var_58 = var_58_arg_0 >> 0; [L162] SORT_1 var_59_arg_0 = input_2; [L163] SORT_3 var_59 = var_59_arg_0 >> 2; [L164] SORT_3 var_60_arg_0 = var_59; [L165] SORT_3 var_60 = ~var_60_arg_0; [L166] SORT_1 var_61_arg_0 = input_2; [L167] SORT_3 var_61 = var_61_arg_0 >> 1; [L168] SORT_3 var_62_arg_0 = var_60; [L169] SORT_3 var_62_arg_1 = var_61; VAL [mask_SORT_3=1, next_115_arg_1=0, next_116_arg_1=-256, state_15=0, state_17=0, state_20=0, var_30=1, var_40=-1, var_51=-1, var_58=1, var_62_arg_0=-1, var_62_arg_1=0] [L170] EXPR var_62_arg_0 | var_62_arg_1 VAL [mask_SORT_3=1, next_115_arg_1=0, next_116_arg_1=-256, state_15=0, state_17=0, state_20=0, var_30=1, var_40=-1, var_51=-1, var_58=1] [L170] SORT_3 var_62 = var_62_arg_0 | var_62_arg_1; [L171] SORT_3 var_63_arg_0 = var_58; [L172] SORT_3 var_63_arg_1 = var_62; VAL [mask_SORT_3=1, next_115_arg_1=0, next_116_arg_1=-256, state_15=0, state_17=0, state_20=0, var_30=1, var_40=-1, var_51=-1, var_58=1, var_62=255, var_63_arg_0=1, var_63_arg_1=255] [L173] EXPR var_63_arg_0 | var_63_arg_1 VAL [mask_SORT_3=1, next_115_arg_1=0, next_116_arg_1=-256, state_15=0, state_17=0, state_20=0, var_30=1, var_40=-1, var_51=-1, var_58=1, var_62=255] [L173] SORT_3 var_63 = var_63_arg_0 | var_63_arg_1; [L174] SORT_3 var_64_arg_0 = var_63; [L175] SORT_3 var_64 = ~var_64_arg_0; [L176] SORT_3 var_65_arg_0 = state_15; [L177] SORT_3 var_65_arg_1 = state_17; VAL [mask_SORT_3=1, next_115_arg_1=0, next_116_arg_1=-256, state_15=0, state_20=0, var_30=1, var_40=-1, var_51=-1, var_58=1, var_62=255, var_64=-1, var_65_arg_0=0, var_65_arg_1=0] [L178] EXPR var_65_arg_0 | var_65_arg_1 VAL [mask_SORT_3=1, next_115_arg_1=0, next_116_arg_1=-256, state_15=0, state_20=0, var_30=1, var_40=-1, var_51=-1, var_58=1, var_62=255, var_64=-1] [L178] SORT_3 var_65 = var_65_arg_0 | var_65_arg_1; [L179] SORT_3 var_66_arg_0 = var_64; [L180] SORT_3 var_66_arg_1 = var_65; VAL [mask_SORT_3=1, next_115_arg_1=0, next_116_arg_1=-256, state_15=0, state_20=0, var_30=1, var_40=-1, var_51=-1, var_58=1, var_62=255, var_65=0, var_66_arg_0=-1, var_66_arg_1=0] [L181] EXPR var_66_arg_0 | var_66_arg_1 VAL [mask_SORT_3=1, next_115_arg_1=0, next_116_arg_1=-256, state_15=0, state_20=0, var_30=1, var_40=-1, var_51=-1, var_58=1, var_62=255, var_65=0] [L181] SORT_3 var_66 = var_66_arg_0 | var_66_arg_1; [L182] SORT_3 var_67_arg_0 = var_66; [L183] SORT_3 var_67_arg_1 = var_51; VAL [mask_SORT_3=1, next_115_arg_1=0, next_116_arg_1=-256, state_15=0, state_20=0, var_30=1, var_40=-1, var_58=1, var_62=255, var_65=0, var_67_arg_0=255, var_67_arg_1=-1] [L184] EXPR var_67_arg_0 & var_67_arg_1 VAL [mask_SORT_3=1, next_115_arg_1=0, next_116_arg_1=-256, state_15=0, state_20=0, var_30=1, var_40=-1, var_58=1, var_62=255, var_65=0] [L184] SORT_3 var_67 = var_67_arg_0 & var_67_arg_1; [L185] SORT_3 next_117_arg_1 = var_67; [L186] SORT_3 var_69_arg_0 = state_15; [L187] SORT_3 var_69_arg_1 = state_20; VAL [mask_SORT_3=1, next_115_arg_1=0, next_116_arg_1=-256, next_117_arg_1=255, state_20=0, var_30=1, var_40=-1, var_58=1, var_62=255, var_65=0, var_69_arg_0=0, var_69_arg_1=0] [L188] EXPR var_69_arg_0 & var_69_arg_1 VAL [mask_SORT_3=1, next_115_arg_1=0, next_116_arg_1=-256, next_117_arg_1=255, state_20=0, var_30=1, var_40=-1, var_58=1, var_62=255, var_65=0] [L188] SORT_3 var_69 = var_69_arg_0 & var_69_arg_1; [L189] SORT_3 var_70_arg_0 = var_69; [L190] SORT_3 var_70 = ~var_70_arg_0; [L191] SORT_3 var_71_arg_0 = var_40; [L192] SORT_3 var_71_arg_1 = var_70; VAL [mask_SORT_3=1, next_115_arg_1=0, next_116_arg_1=-256, next_117_arg_1=255, state_20=0, var_30=1, var_58=1, var_62=255, var_65=0, var_71_arg_0=-1, var_71_arg_1=-1] [L193] EXPR var_71_arg_0 | var_71_arg_1 VAL [mask_SORT_3=1, next_115_arg_1=0, next_116_arg_1=-256, next_117_arg_1=255, state_20=0, var_30=1, var_58=1, var_62=255, var_65=0] [L193] SORT_3 var_71 = var_71_arg_0 | var_71_arg_1; [L194] SORT_3 var_72_arg_0 = var_71; [L195] SORT_3 var_72 = ~var_72_arg_0; [L196] SORT_3 var_73_arg_0 = state_20; [L197] SORT_3 var_73_arg_1 = var_65; VAL [mask_SORT_3=1, next_115_arg_1=0, next_116_arg_1=-256, next_117_arg_1=255, var_30=1, var_58=1, var_62=255, var_72=-256, var_73_arg_0=0, var_73_arg_1=0] [L198] EXPR var_73_arg_0 | var_73_arg_1 VAL [mask_SORT_3=1, next_115_arg_1=0, next_116_arg_1=-256, next_117_arg_1=255, var_30=1, var_58=1, var_62=255, var_72=-256] [L198] SORT_3 var_73 = var_73_arg_0 | var_73_arg_1; [L199] SORT_3 var_74_arg_0 = var_73; [L200] SORT_3 var_74 = ~var_74_arg_0; [L201] SORT_3 var_75_arg_0 = var_58; [L202] SORT_3 var_75_arg_1 = var_74; VAL [mask_SORT_3=1, next_115_arg_1=0, next_116_arg_1=-256, next_117_arg_1=255, var_30=1, var_62=255, var_72=-256, var_74=-1, var_75_arg_0=1, var_75_arg_1=-1] [L203] EXPR var_75_arg_0 & var_75_arg_1 VAL [mask_SORT_3=1, next_115_arg_1=0, next_116_arg_1=-256, next_117_arg_1=255, var_30=1, var_62=255, var_72=-256, var_74=-1] [L203] SORT_3 var_75 = var_75_arg_0 & var_75_arg_1; [L204] SORT_3 var_76_arg_0 = var_75; [L205] SORT_3 var_76 = ~var_76_arg_0; [L206] SORT_3 var_77_arg_0 = var_76; [L207] SORT_3 var_77 = ~var_77_arg_0; [L208] SORT_3 var_78_arg_0 = var_72; [L209] SORT_3 var_78_arg_1 = var_77; VAL [mask_SORT_3=1, next_115_arg_1=0, next_116_arg_1=-256, next_117_arg_1=255, var_30=1, var_62=255, var_74=-1, var_78_arg_0=-256, var_78_arg_1=-256] [L210] EXPR var_78_arg_0 | var_78_arg_1 VAL [mask_SORT_3=1, next_115_arg_1=0, next_116_arg_1=-256, next_117_arg_1=255, var_30=1, var_62=255, var_74=-1] [L210] SORT_3 var_78 = var_78_arg_0 | var_78_arg_1; [L211] SORT_3 var_79_arg_0 = var_62; [L212] SORT_3 var_79_arg_1 = var_74; VAL [mask_SORT_3=1, next_115_arg_1=0, next_116_arg_1=-256, next_117_arg_1=255, var_30=1, var_78=0, var_79_arg_0=255, var_79_arg_1=-1] [L213] EXPR var_79_arg_0 & var_79_arg_1 VAL [mask_SORT_3=1, next_115_arg_1=0, next_116_arg_1=-256, next_117_arg_1=255, var_30=1, var_78=0] [L213] SORT_3 var_79 = var_79_arg_0 & var_79_arg_1; [L214] SORT_3 var_80_arg_0 = var_78; [L215] SORT_3 var_80_arg_1 = var_79; VAL [mask_SORT_3=1, next_115_arg_1=0, next_116_arg_1=-256, next_117_arg_1=255, var_30=1, var_80_arg_0=0, var_80_arg_1=255] [L216] EXPR var_80_arg_0 | var_80_arg_1 VAL [mask_SORT_3=1, next_115_arg_1=0, next_116_arg_1=-256, next_117_arg_1=255, var_30=1] [L216] SORT_3 var_80 = var_80_arg_0 | var_80_arg_1; [L217] SORT_3 next_118_arg_1 = var_80; [L219] state_15 = next_115_arg_1 [L220] state_17 = next_116_arg_1 [L221] state_20 = next_117_arg_1 [L222] state_24 = next_118_arg_1 [L74] input_2 = __VERIFIER_nondet_uchar() [L75] input_4 = __VERIFIER_nondet_uchar() [L76] input_5 = __VERIFIER_nondet_uchar() [L77] input_6 = __VERIFIER_nondet_uchar() [L78] input_7 = __VERIFIER_nondet_uchar() [L79] input_8 = __VERIFIER_nondet_uchar() [L80] input_9 = __VERIFIER_nondet_uchar() [L81] input_10 = __VERIFIER_nondet_uchar() [L82] input_11 = __VERIFIER_nondet_uchar() [L83] input_13 = __VERIFIER_nondet_uchar() [L84] input_34 = __VERIFIER_nondet_uchar() [L85] input_36 = __VERIFIER_nondet_uchar() [L86] input_38 = __VERIFIER_nondet_uchar() [L87] input_100 = __VERIFIER_nondet_uchar() [L88] input_102 = __VERIFIER_nondet_uchar() [L89] input_105 = __VERIFIER_nondet_uchar() [L90] input_107 = __VERIFIER_nondet_uchar() [L91] input_109 = __VERIFIER_nondet_uchar() [L92] input_111 = __VERIFIER_nondet_uchar() [L93] input_113 = __VERIFIER_nondet_uchar() [L96] SORT_3 var_19_arg_0 = state_15; [L97] SORT_3 var_19_arg_1 = state_17; VAL [mask_SORT_3=1, state_15=0, state_17=-256, state_20=255, state_24=255, var_19_arg_0=0, var_19_arg_1=-256, var_30=1] [L98] EXPR var_19_arg_0 | var_19_arg_1 VAL [mask_SORT_3=1, state_15=0, state_17=-256, state_20=255, state_24=255, var_30=1] [L98] SORT_3 var_19 = var_19_arg_0 | var_19_arg_1; [L99] SORT_3 var_22_arg_0 = var_19; [L100] SORT_3 var_22_arg_1 = state_20; VAL [mask_SORT_3=1, state_15=0, state_17=-256, state_20=255, state_24=255, var_22_arg_0=0, var_22_arg_1=255, var_30=1] [L101] EXPR var_22_arg_0 | var_22_arg_1 VAL [mask_SORT_3=1, state_15=0, state_17=-256, state_20=255, state_24=255, var_30=1] [L101] SORT_3 var_22 = var_22_arg_0 | var_22_arg_1; [L102] SORT_3 var_23_arg_0 = var_22; [L103] SORT_3 var_23 = ~var_23_arg_0; [L104] SORT_3 var_26_arg_0 = state_24; [L105] SORT_3 var_26 = ~var_26_arg_0; [L106] SORT_3 var_27_arg_0 = var_23; [L107] SORT_3 var_27_arg_1 = var_26; VAL [mask_SORT_3=1, state_15=0, state_17=-256, state_20=255, var_27_arg_0=-256, var_27_arg_1=-256, var_30=1] [L108] EXPR var_27_arg_0 | var_27_arg_1 VAL [mask_SORT_3=1, state_15=0, state_17=-256, state_20=255, var_30=1] [L108] SORT_3 var_27 = var_27_arg_0 | var_27_arg_1; [L109] SORT_3 var_31_arg_0 = var_27; [L110] SORT_3 var_31 = ~var_31_arg_0; [L111] SORT_3 var_32_arg_0 = var_30; [L112] SORT_3 var_32_arg_1 = var_31; VAL [mask_SORT_3=1, state_15=0, state_17=-256, state_20=255, var_30=1, var_32_arg_0=1, var_32_arg_1=-1] [L113] EXPR var_32_arg_0 & var_32_arg_1 VAL [mask_SORT_3=1, state_15=0, state_17=-256, state_20=255, var_30=1] [L113] SORT_3 var_32 = var_32_arg_0 & var_32_arg_1; [L114] EXPR var_32 & mask_SORT_3 VAL [mask_SORT_3=1, state_15=0, state_17=-256, state_20=255, var_30=1] [L114] var_32 = var_32 & mask_SORT_3 [L115] SORT_3 bad_33_arg_0 = var_32; [L116] CALL __VERIFIER_assert(!(bad_33_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 126 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 53.3s, OverallIterations: 45, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 16.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8111 SdHoareTripleChecker+Valid, 8.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8111 mSDsluCounter, 76844 SdHoareTripleChecker+Invalid, 7.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 69017 mSDsCounter, 156 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15892 IncrementalHoareTripleChecker+Invalid, 16048 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 156 mSolverCounterUnsat, 7827 mSDtfsCounter, 15892 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1722 GetRequests, 870 SyntacticMatches, 5 SemanticMatches, 847 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14003 ImplicationChecksByTransitivity, 17.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1871occurred in iteration=42, InterpolantAutomatonStates: 652, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 44 MinimizatonAttempts, 2190 StatesRemovedByMinimization, 28 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 28.7s InterpolantComputationTime, 4078 NumberOfCodeBlocks, 4078 NumberOfCodeBlocksAsserted, 52 NumberOfCheckSat, 4276 ConstructedInterpolants, 0 QuantifiedInterpolants, 24565 SizeOfPredicates, 40 NumberOfNonLiveVariables, 3386 ConjunctsInSsa, 461 ConjunctsInUnsatCore, 55 InterpolantComputations, 40 PerfectInterpolantSequences, 503/588 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-18 18:17:38,045 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 64bit --witnessprinter.graph.data.programhash 895ff1e019ffafaf8b2f8e3efbd16ea4845b2e4eac0a4db8b4c86c462883ae8c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 18:17:40,088 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 18:17:40,147 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-18 18:17:40,152 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 18:17:40,153 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 18:17:40,177 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 18:17:40,179 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 18:17:40,180 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 18:17:40,180 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 18:17:40,180 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 18:17:40,181 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 18:17:40,182 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 18:17:40,183 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 18:17:40,183 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 18:17:40,183 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 18:17:40,184 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 18:17:40,184 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 18:17:40,186 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 18:17:40,186 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 18:17:40,186 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 18:17:40,187 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 18:17:40,187 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-18 18:17:40,187 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-18 18:17:40,187 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 18:17:40,188 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-18 18:17:40,188 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 18:17:40,188 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 18:17:40,188 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 18:17:40,188 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 18:17:40,189 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 18:17:40,189 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 18:17:40,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 18:17:40,189 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 18:17:40,189 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 18:17:40,190 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 18:17:40,190 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-18 18:17:40,190 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-18 18:17:40,197 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 18:17:40,198 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 18:17:40,198 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 18:17:40,198 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 18:17:40,198 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 895ff1e019ffafaf8b2f8e3efbd16ea4845b2e4eac0a4db8b4c86c462883ae8c [2024-11-18 18:17:40,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 18:17:40,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 18:17:40,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 18:17:40,514 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 18:17:40,516 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 18:17:40,517 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p2.c [2024-11-18 18:17:41,923 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 18:17:42,129 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 18:17:42,131 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p2.c [2024-11-18 18:17:42,146 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4178f1456/c247feb9a99849a9b3d75fdc9be1c98f/FLAGb594cb6fa [2024-11-18 18:17:42,501 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4178f1456/c247feb9a99849a9b3d75fdc9be1c98f [2024-11-18 18:17:42,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 18:17:42,505 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 18:17:42,506 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 18:17:42,506 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 18:17:42,510 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 18:17:42,511 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:17:42" (1/1) ... [2024-11-18 18:17:42,511 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bccff7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:17:42, skipping insertion in model container [2024-11-18 18:17:42,512 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:17:42" (1/1) ... [2024-11-18 18:17:42,534 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 18:17:42,693 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p2.c[1259,1272] [2024-11-18 18:17:42,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 18:17:42,742 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 18:17:42,751 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p2.c[1259,1272] [2024-11-18 18:17:42,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 18:17:42,826 INFO L204 MainTranslator]: Completed translation [2024-11-18 18:17:42,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:17:42 WrapperNode [2024-11-18 18:17:42,826 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 18:17:42,828 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 18:17:42,828 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 18:17:42,828 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 18:17:42,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:17:42" (1/1) ... [2024-11-18 18:17:42,849 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:17:42" (1/1) ... [2024-11-18 18:17:42,887 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 252 [2024-11-18 18:17:42,890 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 18:17:42,891 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 18:17:42,891 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 18:17:42,891 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 18:17:42,898 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:17:42" (1/1) ... [2024-11-18 18:17:42,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:17:42" (1/1) ... [2024-11-18 18:17:42,905 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:17:42" (1/1) ... [2024-11-18 18:17:42,922 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 18:17:42,926 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:17:42" (1/1) ... [2024-11-18 18:17:42,926 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:17:42" (1/1) ... [2024-11-18 18:17:42,935 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:17:42" (1/1) ... [2024-11-18 18:17:42,938 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:17:42" (1/1) ... [2024-11-18 18:17:42,942 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:17:42" (1/1) ... [2024-11-18 18:17:42,943 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:17:42" (1/1) ... [2024-11-18 18:17:42,948 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 18:17:42,949 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 18:17:42,949 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 18:17:42,949 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 18:17:42,950 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:17:42" (1/1) ... [2024-11-18 18:17:42,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 18:17:42,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 18:17:42,980 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 18:17:42,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 18:17:43,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 18:17:43,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-18 18:17:43,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 18:17:43,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 18:17:43,111 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 18:17:43,112 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 18:17:43,343 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-11-18 18:17:43,343 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 18:17:43,356 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 18:17:43,357 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 18:17:43,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:17:43 BoogieIcfgContainer [2024-11-18 18:17:43,358 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 18:17:43,360 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 18:17:43,360 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 18:17:43,362 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 18:17:43,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:17:42" (1/3) ... [2024-11-18 18:17:43,364 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fed2114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:17:43, skipping insertion in model container [2024-11-18 18:17:43,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:17:42" (2/3) ... [2024-11-18 18:17:43,364 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fed2114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:17:43, skipping insertion in model container [2024-11-18 18:17:43,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:17:43" (3/3) ... [2024-11-18 18:17:43,366 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_s1269b_p2.c [2024-11-18 18:17:43,380 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 18:17:43,381 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 18:17:43,442 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 18:17:43,447 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;@76dcbe31, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 18:17:43,448 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 18:17:43,451 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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) [2024-11-18 18:17:43,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-18 18:17:43,457 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:43,457 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-18 18:17:43,459 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:43,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:43,464 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-18 18:17:43,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 18:17:43,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [261196419] [2024-11-18 18:17:43,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:43,473 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 18:17:43,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 18:17:43,476 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 18:17:43,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-18 18:17:43,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:43,592 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-18 18:17:43,599 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 18:17:43,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:43,761 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 18:17:43,761 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 18:17:43,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [261196419] [2024-11-18 18:17:43,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [261196419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:17:43,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:17:43,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 18:17:43,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58766433] [2024-11-18 18:17:43,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:43,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 18:17:43,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 18:17:43,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 18:17:43,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 18:17:43,789 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2024-11-18 18:17:43,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:43,816 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2024-11-18 18:17:43,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 18:17:43,819 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2024-11-18 18:17:43,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:43,824 INFO L225 Difference]: With dead ends: 17 [2024-11-18 18:17:43,824 INFO L226 Difference]: Without dead ends: 9 [2024-11-18 18:17:43,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 18:17:43,829 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:43,831 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:17:43,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2024-11-18 18:17:43,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2024-11-18 18:17:43,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2024-11-18 18:17:43,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-18 18:17:43,854 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-18 18:17:43,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:43,854 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-18 18:17:43,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2024-11-18 18:17:43,855 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-18 18:17:43,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-18 18:17:43,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:17:43,856 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-18 18:17:43,861 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-18 18:17:44,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 18:17:44,059 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:17:44,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:17:44,060 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-18 18:17:44,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 18:17:44,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [661904480] [2024-11-18 18:17:44,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:17:44,061 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 18:17:44,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 18:17:44,067 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 18:17:44,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-18 18:17:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:17:44,192 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-18 18:17:44,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 18:17:44,356 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:44,356 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 18:17:44,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:17:44,420 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 18:17:44,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [661904480] [2024-11-18 18:17:44,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [661904480] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-18 18:17:44,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 18:17:44,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-18 18:17:44,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383167297] [2024-11-18 18:17:44,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:17:44,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 18:17:44,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 18:17:44,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 18:17:44,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-18 18:17:44,423 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-11-18 18:17:44,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:17:44,446 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2024-11-18 18:17:44,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 18:17:44,447 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2024-11-18 18:17:44,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:17:44,447 INFO L225 Difference]: With dead ends: 9 [2024-11-18 18:17:44,447 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 18:17:44,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-18 18:17:44,448 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:17:44,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:17:44,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 18:17:44,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 18:17:44,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-11-18 18:17:44,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 18:17:44,450 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2024-11-18 18:17:44,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:17:44,450 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 18:17:44,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-11-18 18:17:44,451 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 18:17:44,451 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 18:17:44,453 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 18:17:44,460 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-18 18:17:44,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 18:17:44,657 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-18 18:17:44,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 18:17:44,682 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 18:17:44,688 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 18:17:44,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 06:17:44 BoogieIcfgContainer [2024-11-18 18:17:44,689 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 18:17:44,690 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 18:17:44,690 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 18:17:44,690 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 18:17:44,691 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:17:43" (3/4) ... [2024-11-18 18:17:44,692 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 18:17:44,698 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-18 18:17:44,699 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-18 18:17:44,699 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-18 18:17:44,700 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 18:17:44,777 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 18:17:44,777 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 18:17:44,777 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 18:17:44,778 INFO L158 Benchmark]: Toolchain (without parser) took 2273.15ms. Allocated memory was 79.7MB in the beginning and 146.8MB in the end (delta: 67.1MB). Free memory was 41.0MB in the beginning and 66.5MB in the end (delta: -25.5MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. [2024-11-18 18:17:44,778 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 79.7MB. Free memory is still 61.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 18:17:44,778 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.04ms. Allocated memory is still 79.7MB. Free memory was 40.8MB in the beginning and 47.6MB in the end (delta: -6.8MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2024-11-18 18:17:44,779 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.60ms. Allocated memory is still 79.7MB. Free memory was 47.6MB in the beginning and 44.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 18:17:44,779 INFO L158 Benchmark]: Boogie Preprocessor took 58.01ms. Allocated memory is still 79.7MB. Free memory was 44.7MB in the beginning and 41.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 18:17:44,779 INFO L158 Benchmark]: RCFGBuilder took 408.95ms. Allocated memory was 79.7MB in the beginning and 146.8MB in the end (delta: 67.1MB). Free memory was 41.7MB in the beginning and 108.2MB in the end (delta: -66.5MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2024-11-18 18:17:44,779 INFO L158 Benchmark]: TraceAbstraction took 1329.88ms. Allocated memory is still 146.8MB. Free memory was 107.4MB in the beginning and 72.8MB in the end (delta: 34.7MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2024-11-18 18:17:44,780 INFO L158 Benchmark]: Witness Printer took 87.51ms. Allocated memory is still 146.8MB. Free memory was 72.8MB in the beginning and 66.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-18 18:17:44,781 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 79.7MB. Free memory is still 61.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.04ms. Allocated memory is still 79.7MB. Free memory was 40.8MB in the beginning and 47.6MB in the end (delta: -6.8MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.60ms. Allocated memory is still 79.7MB. Free memory was 47.6MB in the beginning and 44.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.01ms. Allocated memory is still 79.7MB. Free memory was 44.7MB in the beginning and 41.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 408.95ms. Allocated memory was 79.7MB in the beginning and 146.8MB in the end (delta: 67.1MB). Free memory was 41.7MB in the beginning and 108.2MB in the end (delta: -66.5MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1329.88ms. Allocated memory is still 146.8MB. Free memory was 107.4MB in the beginning and 72.8MB in the end (delta: 34.7MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. * Witness Printer took 87.51ms. Allocated memory is still 146.8MB. Free memory was 72.8MB in the beginning and 66.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 8 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 2 QuantifiedInterpolants, 196 SizeOfPredicates, 6 NumberOfNonLiveVariables, 128 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 2/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-18 18:17:44,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE