./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/list-properties/alternating_list-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/list-properties/alternating_list-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 941f3dd0e4566f414ae914eed10af26405f8e9f2f3d427c146090b07336d2fc2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 00:50:16,113 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 00:50:16,186 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 00:50:16,193 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 00:50:16,194 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 00:50:16,227 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 00:50:16,227 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 00:50:16,228 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 00:50:16,229 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 00:50:16,229 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 00:50:16,230 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 00:50:16,230 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 00:50:16,230 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 00:50:16,231 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 00:50:16,231 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 00:50:16,231 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 00:50:16,232 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 00:50:16,232 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 00:50:16,232 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 00:50:16,233 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 00:50:16,236 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 00:50:16,237 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 00:50:16,237 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 00:50:16,238 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 00:50:16,238 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 00:50:16,238 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 00:50:16,239 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 00:50:16,239 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 00:50:16,239 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 00:50:16,240 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 00:50:16,240 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 00:50:16,240 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 00:50:16,241 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 00:50:16,241 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 00:50:16,241 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 00:50:16,242 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 00:50:16,242 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 00:50:16,242 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 00:50:16,242 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 00:50:16,243 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 00:50:16,243 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 00:50:16,244 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 00:50:16,245 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 941f3dd0e4566f414ae914eed10af26405f8e9f2f3d427c146090b07336d2fc2 [2024-11-22 00:50:16,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 00:50:16,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 00:50:16,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 00:50:16,554 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 00:50:16,554 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 00:50:16,556 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/alternating_list-1.i [2024-11-22 00:50:18,017 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 00:50:18,285 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 00:50:18,285 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/alternating_list-1.i [2024-11-22 00:50:18,303 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/771593c96/d9e517af04494034995f0f6372682e7a/FLAG07387f3fa [2024-11-22 00:50:18,586 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/771593c96/d9e517af04494034995f0f6372682e7a [2024-11-22 00:50:18,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 00:50:18,589 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 00:50:18,590 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 00:50:18,590 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 00:50:18,595 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 00:50:18,597 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:50:18" (1/1) ... [2024-11-22 00:50:18,598 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54852af9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:18, skipping insertion in model container [2024-11-22 00:50:18,598 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:50:18" (1/1) ... [2024-11-22 00:50:18,641 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 00:50:18,897 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/list-properties/alternating_list-1.i[23574,23587] [2024-11-22 00:50:18,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 00:50:18,912 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 00:50:18,958 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/list-properties/alternating_list-1.i[23574,23587] [2024-11-22 00:50:18,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 00:50:18,986 INFO L204 MainTranslator]: Completed translation [2024-11-22 00:50:18,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:18 WrapperNode [2024-11-22 00:50:18,986 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 00:50:18,987 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 00:50:18,987 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 00:50:18,987 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 00:50:18,992 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:18" (1/1) ... [2024-11-22 00:50:19,008 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:18" (1/1) ... [2024-11-22 00:50:19,029 INFO L138 Inliner]: procedures = 124, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 86 [2024-11-22 00:50:19,029 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 00:50:19,029 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 00:50:19,030 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 00:50:19,030 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 00:50:19,037 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:18" (1/1) ... [2024-11-22 00:50:19,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:18" (1/1) ... [2024-11-22 00:50:19,040 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:18" (1/1) ... [2024-11-22 00:50:19,054 INFO L175 MemorySlicer]: Split 13 memory accesses to 2 slices as follows [2, 11]. 85 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 4 writes are split as follows [0, 4]. [2024-11-22 00:50:19,054 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:18" (1/1) ... [2024-11-22 00:50:19,055 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:18" (1/1) ... [2024-11-22 00:50:19,060 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:18" (1/1) ... [2024-11-22 00:50:19,064 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:18" (1/1) ... [2024-11-22 00:50:19,065 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:18" (1/1) ... [2024-11-22 00:50:19,066 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:18" (1/1) ... [2024-11-22 00:50:19,068 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 00:50:19,069 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 00:50:19,069 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 00:50:19,070 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 00:50:19,070 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:18" (1/1) ... [2024-11-22 00:50:19,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 00:50:19,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 00:50:19,113 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) [2024-11-22 00:50:19,120 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 [2024-11-22 00:50:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2024-11-22 00:50:19,162 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2024-11-22 00:50:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 00:50:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 00:50:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 00:50:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 00:50:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 00:50:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 00:50:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 00:50:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 00:50:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-22 00:50:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-22 00:50:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 00:50:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 00:50:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 00:50:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 00:50:19,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 00:50:19,263 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 00:50:19,265 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 00:50:19,294 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2024-11-22 00:50:19,470 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-22 00:50:19,470 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 00:50:19,487 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 00:50:19,487 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-22 00:50:19,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:50:19 BoogieIcfgContainer [2024-11-22 00:50:19,488 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 00:50:19,490 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 00:50:19,491 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 00:50:19,495 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 00:50:19,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:50:18" (1/3) ... [2024-11-22 00:50:19,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f668193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:50:19, skipping insertion in model container [2024-11-22 00:50:19,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:18" (2/3) ... [2024-11-22 00:50:19,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f668193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:50:19, skipping insertion in model container [2024-11-22 00:50:19,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:50:19" (3/3) ... [2024-11-22 00:50:19,499 INFO L112 eAbstractionObserver]: Analyzing ICFG alternating_list-1.i [2024-11-22 00:50:19,518 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 00:50:19,519 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 00:50:19,569 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 00:50:19,575 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;@594e5a2f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 00:50:19,575 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 00:50:19,580 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 26 states have (on average 1.5) internal successors, (39), 28 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 00:50:19,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-22 00:50:19,587 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 00:50:19,587 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 00:50:19,588 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 00:50:19,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 00:50:19,594 INFO L85 PathProgramCache]: Analyzing trace with hash 930969484, now seen corresponding path program 1 times [2024-11-22 00:50:19,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 00:50:19,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913640658] [2024-11-22 00:50:19,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 00:50:19,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 00:50:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 00:50:19,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 00:50:19,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 00:50:19,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913640658] [2024-11-22 00:50:19,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913640658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 00:50:19,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 00:50:19,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 00:50:19,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044183822] [2024-11-22 00:50:19,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 00:50:19,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 00:50:19,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 00:50:19,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 00:50:19,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 00:50:19,811 INFO L87 Difference]: Start difference. First operand has 30 states, 26 states have (on average 1.5) internal successors, (39), 28 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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) [2024-11-22 00:50:19,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 00:50:19,824 INFO L93 Difference]: Finished difference Result 46 states and 63 transitions. [2024-11-22 00:50:19,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 00:50:19,826 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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) Word has length 11 [2024-11-22 00:50:19,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 00:50:19,831 INFO L225 Difference]: With dead ends: 46 [2024-11-22 00:50:19,831 INFO L226 Difference]: Without dead ends: 19 [2024-11-22 00:50:19,833 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 00:50:19,836 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 00:50:19,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 00:50:19,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-22 00:50:19,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-22 00:50:19,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 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) [2024-11-22 00:50:19,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2024-11-22 00:50:19,866 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 11 [2024-11-22 00:50:19,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 00:50:19,867 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2024-11-22 00:50:19,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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) [2024-11-22 00:50:19,868 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-11-22 00:50:19,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-22 00:50:19,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 00:50:19,869 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 00:50:19,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 00:50:19,870 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 00:50:19,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 00:50:19,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1797355599, now seen corresponding path program 1 times [2024-11-22 00:50:19,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 00:50:19,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405085226] [2024-11-22 00:50:19,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 00:50:19,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 00:50:19,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 00:50:19,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 00:50:19,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 00:50:19,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405085226] [2024-11-22 00:50:19,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405085226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 00:50:19,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 00:50:19,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 00:50:19,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29788127] [2024-11-22 00:50:19,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 00:50:20,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 00:50:20,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 00:50:20,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 00:50:20,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 00:50:20,002 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 00:50:20,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 00:50:20,034 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2024-11-22 00:50:20,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 00:50:20,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2024-11-22 00:50:20,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 00:50:20,036 INFO L225 Difference]: With dead ends: 47 [2024-11-22 00:50:20,036 INFO L226 Difference]: Without dead ends: 32 [2024-11-22 00:50:20,037 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 [2024-11-22 00:50:20,039 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 12 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 00:50:20,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 39 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 00:50:20,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-11-22 00:50:20,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2024-11-22 00:50:20,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 00:50:20,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2024-11-22 00:50:20,050 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 12 [2024-11-22 00:50:20,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 00:50:20,050 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2024-11-22 00:50:20,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 00:50:20,051 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2024-11-22 00:50:20,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-22 00:50:20,052 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 00:50:20,052 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 00:50:20,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 00:50:20,052 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 00:50:20,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 00:50:20,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1797348655, now seen corresponding path program 1 times [2024-11-22 00:50:20,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 00:50:20,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560053576] [2024-11-22 00:50:20,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 00:50:20,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 00:50:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 00:50:20,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 00:50:20,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 00:50:20,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560053576] [2024-11-22 00:50:20,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560053576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 00:50:20,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 00:50:20,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 00:50:20,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726008000] [2024-11-22 00:50:20,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 00:50:20,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 00:50:20,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 00:50:20,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 00:50:20,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 00:50:20,324 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 00:50:20,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 00:50:20,421 INFO L93 Difference]: Finished difference Result 57 states and 65 transitions. [2024-11-22 00:50:20,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 00:50:20,422 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2024-11-22 00:50:20,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 00:50:20,426 INFO L225 Difference]: With dead ends: 57 [2024-11-22 00:50:20,426 INFO L226 Difference]: Without dead ends: 42 [2024-11-22 00:50:20,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 00:50:20,427 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 12 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 00:50:20,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 57 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 00:50:20,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-22 00:50:20,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 31. [2024-11-22 00:50:20,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.2) internal successors, (36), 30 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 00:50:20,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2024-11-22 00:50:20,435 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 12 [2024-11-22 00:50:20,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 00:50:20,435 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2024-11-22 00:50:20,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 00:50:20,436 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2024-11-22 00:50:20,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-22 00:50:20,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 00:50:20,436 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 00:50:20,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 00:50:20,437 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 00:50:20,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 00:50:20,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1890563654, now seen corresponding path program 1 times [2024-11-22 00:50:20,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 00:50:20,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827025566] [2024-11-22 00:50:20,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 00:50:20,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 00:50:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 00:50:20,890 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 00:50:20,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 00:50:20,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827025566] [2024-11-22 00:50:20,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827025566] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 00:50:20,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547579041] [2024-11-22 00:50:20,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 00:50:20,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 00:50:20,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 00:50:20,895 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) [2024-11-22 00:50:20,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 00:50:20,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 00:50:20,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-22 00:50:20,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 00:50:21,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 00:50:21,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-22 00:50:21,177 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-22 00:50:21,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-22 00:50:21,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-11-22 00:50:21,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-22 00:50:21,283 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 00:50:21,284 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 00:50:21,366 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_74 (Array Int Int)) (v_ArrVal_75 (Array Int Int))) (or (not (= (let ((.cse0 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4))) (store (select |c_#memory_int#1| |c_ULTIMATE.start_main_~p~0#1.base|) .cse0 (select v_ArrVal_74 .cse0))) v_ArrVal_74)) (= (select (select (store (store |c_#memory_int#1| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_74) |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_75) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) is different from false [2024-11-22 00:50:21,465 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 00:50:21,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 74 [2024-11-22 00:50:21,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 46 [2024-11-22 00:50:21,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-22 00:50:21,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 98 [2024-11-22 00:50:21,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 00:50:21,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [547579041] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 00:50:21,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 00:50:21,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2024-11-22 00:50:21,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738221500] [2024-11-22 00:50:21,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 00:50:21,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-22 00:50:21,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 00:50:21,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-22 00:50:21,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=189, Unknown=5, NotChecked=28, Total=272 [2024-11-22 00:50:21,659 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 17 states, 17 states have (on average 2.176470588235294) internal successors, (37), 17 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 00:50:22,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 00:50:22,267 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2024-11-22 00:50:22,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 00:50:22,268 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.176470588235294) internal successors, (37), 17 states have internal predecessors, (37), 0 states have call successors, (0), 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 18 [2024-11-22 00:50:22,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 00:50:22,269 INFO L225 Difference]: With dead ends: 49 [2024-11-22 00:50:22,270 INFO L226 Difference]: Without dead ends: 47 [2024-11-22 00:50:22,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=169, Invalid=577, Unknown=14, NotChecked=52, Total=812 [2024-11-22 00:50:22,271 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 106 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 32 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 46 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 00:50:22,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 112 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 174 Invalid, 15 Unknown, 46 Unchecked, 0.3s Time] [2024-11-22 00:50:22,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-22 00:50:22,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 35. [2024-11-22 00:50:22,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 34 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 00:50:22,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2024-11-22 00:50:22,283 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 18 [2024-11-22 00:50:22,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 00:50:22,283 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2024-11-22 00:50:22,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.176470588235294) internal successors, (37), 17 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 00:50:22,284 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2024-11-22 00:50:22,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-22 00:50:22,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 00:50:22,284 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 00:50:22,294 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 00:50:22,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 00:50:22,485 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 00:50:22,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 00:50:22,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1672328945, now seen corresponding path program 1 times [2024-11-22 00:50:22,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 00:50:22,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456111380] [2024-11-22 00:50:22,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 00:50:22,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 00:50:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 00:50:22,938 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 00:50:22,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 00:50:22,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456111380] [2024-11-22 00:50:22,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456111380] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 00:50:22,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325162851] [2024-11-22 00:50:22,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 00:50:22,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 00:50:22,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 00:50:22,941 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) [2024-11-22 00:50:22,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 00:50:23,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 00:50:23,012 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-22 00:50:23,015 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 00:50:23,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-22 00:50:23,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-22 00:50:23,187 INFO L349 Elim1Store]: treesize reduction 15, result has 37.5 percent of original size [2024-11-22 00:50:23,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 51 [2024-11-22 00:50:23,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2024-11-22 00:50:23,218 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2024-11-22 00:50:23,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 17 [2024-11-22 00:50:23,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-22 00:50:23,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-22 00:50:23,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-22 00:50:23,459 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 00:50:23,459 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 00:50:23,578 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 00:50:23,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 97 [2024-11-22 00:50:23,677 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 00:50:23,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 46 [2024-11-22 00:50:23,688 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 00:50:23,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 36 [2024-11-22 00:50:23,703 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 00:50:23,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 52 [2024-11-22 00:50:23,719 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 00:50:23,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 57 [2024-11-22 00:50:23,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2024-11-22 00:50:23,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2024-11-22 00:50:23,840 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 00:50:23,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325162851] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 00:50:23,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 00:50:23,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 24 [2024-11-22 00:50:23,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57750303] [2024-11-22 00:50:23,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 00:50:23,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-22 00:50:23,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 00:50:23,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-22 00:50:23,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=462, Unknown=0, NotChecked=0, Total=552 [2024-11-22 00:50:23,844 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 24 states, 24 states have (on average 2.2083333333333335) internal successors, (53), 24 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 00:50:24,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 00:50:24,236 INFO L93 Difference]: Finished difference Result 69 states and 78 transitions. [2024-11-22 00:50:24,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 00:50:24,237 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.2083333333333335) internal successors, (53), 24 states have internal predecessors, (53), 0 states have call successors, (0), 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 [2024-11-22 00:50:24,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 00:50:24,238 INFO L225 Difference]: With dead ends: 69 [2024-11-22 00:50:24,238 INFO L226 Difference]: Without dead ends: 49 [2024-11-22 00:50:24,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=184, Invalid=872, Unknown=0, NotChecked=0, Total=1056 [2024-11-22 00:50:24,239 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 58 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 00:50:24,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 163 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 00:50:24,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-22 00:50:24,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 41. [2024-11-22 00:50:24,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.15) internal successors, (46), 40 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 00:50:24,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2024-11-22 00:50:24,246 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 23 [2024-11-22 00:50:24,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 00:50:24,246 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2024-11-22 00:50:24,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.2083333333333335) internal successors, (53), 24 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 00:50:24,247 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2024-11-22 00:50:24,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-22 00:50:24,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 00:50:24,247 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 00:50:24,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 00:50:24,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 00:50:24,452 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 00:50:24,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 00:50:24,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1588811868, now seen corresponding path program 2 times [2024-11-22 00:50:24,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 00:50:24,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966348550] [2024-11-22 00:50:24,453 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 00:50:24,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 00:50:24,472 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 00:50:24,472 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 00:50:24,490 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 00:50:24,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 00:50:24,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966348550] [2024-11-22 00:50:24,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966348550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 00:50:24,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 00:50:24,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 00:50:24,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849764586] [2024-11-22 00:50:24,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 00:50:24,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 00:50:24,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 00:50:24,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 00:50:24,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 00:50:24,493 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 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) [2024-11-22 00:50:24,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 00:50:24,506 INFO L93 Difference]: Finished difference Result 73 states and 82 transitions. [2024-11-22 00:50:24,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 00:50:24,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 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 29 [2024-11-22 00:50:24,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 00:50:24,508 INFO L225 Difference]: With dead ends: 73 [2024-11-22 00:50:24,508 INFO L226 Difference]: Without dead ends: 44 [2024-11-22 00:50:24,509 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 [2024-11-22 00:50:24,509 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 7 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 00:50:24,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 43 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 00:50:24,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-22 00:50:24,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2024-11-22 00:50:24,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.1) internal successors, (44), 40 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 00:50:24,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2024-11-22 00:50:24,516 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 29 [2024-11-22 00:50:24,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 00:50:24,520 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2024-11-22 00:50:24,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 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) [2024-11-22 00:50:24,520 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2024-11-22 00:50:24,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-22 00:50:24,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 00:50:24,521 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 00:50:24,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 00:50:24,521 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 00:50:24,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 00:50:24,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1117807526, now seen corresponding path program 1 times [2024-11-22 00:50:24,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 00:50:24,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529386475] [2024-11-22 00:50:24,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 00:50:24,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 00:50:24,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 00:50:25,465 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 00:50:25,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 00:50:25,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529386475] [2024-11-22 00:50:25,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529386475] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 00:50:25,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662316514] [2024-11-22 00:50:25,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 00:50:25,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 00:50:25,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 00:50:25,468 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) [2024-11-22 00:50:25,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 00:50:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 00:50:25,555 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 70 conjuncts are in the unsatisfiable core [2024-11-22 00:50:25,559 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 00:50:25,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 00:50:25,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-22 00:50:25,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-22 00:50:25,760 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-22 00:50:25,773 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-22 00:50:25,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 22 [2024-11-22 00:50:25,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-22 00:50:25,803 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-22 00:50:25,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2024-11-22 00:50:25,886 INFO L349 Elim1Store]: treesize reduction 4, result has 87.9 percent of original size [2024-11-22 00:50:25,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 51 [2024-11-22 00:50:26,032 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-22 00:50:26,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2024-11-22 00:50:26,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-22 00:50:26,061 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2024-11-22 00:50:26,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 19 [2024-11-22 00:50:26,260 INFO L349 Elim1Store]: treesize reduction 32, result has 37.3 percent of original size [2024-11-22 00:50:26,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 83 treesize of output 76 [2024-11-22 00:50:26,292 INFO L349 Elim1Store]: treesize reduction 38, result has 41.5 percent of original size [2024-11-22 00:50:26,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 76 [2024-11-22 00:50:26,328 INFO L349 Elim1Store]: treesize reduction 38, result has 37.7 percent of original size [2024-11-22 00:50:26,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 66 [2024-11-22 00:50:26,465 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-22 00:50:26,470 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 22 [2024-11-22 00:50:26,863 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-22 00:50:26,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 28 [2024-11-22 00:50:26,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 00:50:26,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-22 00:50:26,930 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 00:50:26,930 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 00:50:27,353 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 00:50:27,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 59 [2024-11-22 00:50:27,391 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 00:50:27,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 866 treesize of output 894 [2024-11-22 00:50:27,413 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 00:50:27,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 522 treesize of output 490 [2024-11-22 00:50:27,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-11-22 00:50:27,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-11-22 00:50:27,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-11-22 00:51:39,896 WARN L286 SmtUtils]: Spent 1.17m on a formula simplification that was a NOOP. DAG size: 2423 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-22 00:51:39,897 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 00:51:39,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 34 select indices, 34 select index equivalence classes, 0 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 561 case distinctions, treesize of input 21793 treesize of output 42170 [2024-11-22 00:51:49,365 INFO L224 Elim1Store]: Index analysis took 4584 ms