./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-87.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/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-87.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 1733340110531036ec2730e9cf68ec8d1d2e7f12e2ee065e03b827b6d5da2aba --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 13:22:41,361 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 13:22:41,414 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 13:22:41,419 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 13:22:41,419 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 13:22:41,436 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 13:22:41,437 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 13:22:41,437 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 13:22:41,439 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 13:22:41,442 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 13:22:41,442 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 13:22:41,442 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 13:22:41,442 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 13:22:41,443 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 13:22:41,444 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 13:22:41,444 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 13:22:41,444 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 13:22:41,444 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 13:22:41,444 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 13:22:41,444 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 13:22:41,445 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 13:22:41,445 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 13:22:41,445 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 13:22:41,445 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 13:22:41,445 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 13:22:41,445 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 13:22:41,446 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 13:22:41,446 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 13:22:41,446 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 13:22:41,446 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 13:22:41,446 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 13:22:41,446 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 13:22:41,447 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 13:22:41,447 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 13:22:41,447 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 13:22:41,448 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 13:22:41,448 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 13:22:41,448 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 13:22:41,448 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 13:22:41,448 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 13:22:41,449 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 13:22:41,449 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 13:22:41,449 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1733340110531036ec2730e9cf68ec8d1d2e7f12e2ee065e03b827b6d5da2aba [2024-11-22 13:22:41,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 13:22:41,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 13:22:41,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 13:22:41,668 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 13:22:41,669 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 13:22:41,670 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-87.i [2024-11-22 13:22:42,829 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 13:22:43,023 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 13:22:43,024 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-87.i [2024-11-22 13:22:43,032 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/540adab3e/de78449c027c426a999413d112f3b2d6/FLAG97d2d361e [2024-11-22 13:22:43,433 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/540adab3e/de78449c027c426a999413d112f3b2d6 [2024-11-22 13:22:43,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 13:22:43,436 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 13:22:43,437 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 13:22:43,437 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 13:22:43,442 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 13:22:43,443 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:22:43" (1/1) ... [2024-11-22 13:22:43,445 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3459f8ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:22:43, skipping insertion in model container [2024-11-22 13:22:43,445 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:22:43" (1/1) ... [2024-11-22 13:22:43,467 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 13:22:43,592 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/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-87.i[917,930] [2024-11-22 13:22:43,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 13:22:43,646 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 13:22:43,657 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/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-87.i[917,930] [2024-11-22 13:22:43,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 13:22:43,695 INFO L204 MainTranslator]: Completed translation [2024-11-22 13:22:43,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:22:43 WrapperNode [2024-11-22 13:22:43,696 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 13:22:43,697 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 13:22:43,697 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 13:22:43,697 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 13:22:43,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:22:43" (1/1) ... [2024-11-22 13:22:43,710 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:22:43" (1/1) ... [2024-11-22 13:22:43,733 INFO L138 Inliner]: procedures = 27, calls = 145, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 421 [2024-11-22 13:22:43,734 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 13:22:43,734 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 13:22:43,734 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 13:22:43,735 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 13:22:43,745 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:22:43" (1/1) ... [2024-11-22 13:22:43,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:22:43" (1/1) ... [2024-11-22 13:22:43,749 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:22:43" (1/1) ... [2024-11-22 13:22:43,763 INFO L175 MemorySlicer]: Split 120 memory accesses to 2 slices as follows [2, 118]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 31 writes are split as follows [0, 31]. [2024-11-22 13:22:43,764 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:22:43" (1/1) ... [2024-11-22 13:22:43,764 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:22:43" (1/1) ... [2024-11-22 13:22:43,771 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:22:43" (1/1) ... [2024-11-22 13:22:43,774 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:22:43" (1/1) ... [2024-11-22 13:22:43,776 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:22:43" (1/1) ... [2024-11-22 13:22:43,777 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:22:43" (1/1) ... [2024-11-22 13:22:43,780 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 13:22:43,781 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 13:22:43,781 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 13:22:43,781 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 13:22:43,782 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:22:43" (1/1) ... [2024-11-22 13:22:43,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 13:22:43,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:22:43,809 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 13:22:43,816 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 13:22:43,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 13:22:43,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-22 13:22:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-22 13:22:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 13:22:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 13:22:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 13:22:43,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 13:22:43,853 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 13:22:43,853 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 13:22:43,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 13:22:43,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 13:22:43,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 13:22:43,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 13:22:43,979 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 13:22:43,983 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 13:22:44,330 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2024-11-22 13:22:44,330 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 13:22:44,342 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 13:22:44,344 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 13:22:44,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:22:44 BoogieIcfgContainer [2024-11-22 13:22:44,344 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 13:22:44,346 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 13:22:44,347 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 13:22:44,350 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 13:22:44,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:22:43" (1/3) ... [2024-11-22 13:22:44,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@607d02d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:22:44, skipping insertion in model container [2024-11-22 13:22:44,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:22:43" (2/3) ... [2024-11-22 13:22:44,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@607d02d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:22:44, skipping insertion in model container [2024-11-22 13:22:44,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:22:44" (3/3) ... [2024-11-22 13:22:44,352 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-87.i [2024-11-22 13:22:44,364 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 13:22:44,365 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 13:22:44,417 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 13:22:44,422 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;@12ea3752, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 13:22:44,423 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 13:22:44,426 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 70 states have (on average 1.3714285714285714) internal successors, (96), 71 states have internal predecessors, (96), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 13:22:44,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-22 13:22:44,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:22:44,435 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:22:44,436 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:22:44,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:22:44,440 INFO L85 PathProgramCache]: Analyzing trace with hash -160032552, now seen corresponding path program 1 times [2024-11-22 13:22:44,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:22:44,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318456448] [2024-11-22 13:22:44,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:22:44,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:22:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:22:44,733 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-22 13:22:44,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:22:44,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318456448] [2024-11-22 13:22:44,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318456448] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 13:22:44,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773350522] [2024-11-22 13:22:44,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:22:44,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:22:44,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:22:44,739 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 13:22:44,740 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 13:22:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:22:44,889 INFO L255 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 13:22:44,897 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 13:22:44,924 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-22 13:22:44,927 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 13:22:44,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773350522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:22:44,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 13:22:44,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 13:22:44,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467278224] [2024-11-22 13:22:44,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:22:44,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 13:22:44,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:22:44,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 13:22:44,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 13:22:44,954 INFO L87 Difference]: Start difference. First operand has 87 states, 70 states have (on average 1.3714285714285714) internal successors, (96), 71 states have internal predecessors, (96), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 13:22:44,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:22:44,974 INFO L93 Difference]: Finished difference Result 167 states and 256 transitions. [2024-11-22 13:22:44,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 13:22:44,976 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 111 [2024-11-22 13:22:44,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:22:44,981 INFO L225 Difference]: With dead ends: 167 [2024-11-22 13:22:44,982 INFO L226 Difference]: Without dead ends: 83 [2024-11-22 13:22:44,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 112 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 13:22:44,989 INFO L432 NwaCegarLoop]: 115 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, 115 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 13:22:44,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 13:22:45,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-22 13:22:45,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-11-22 13:22:45,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 67 states have (on average 1.2985074626865671) internal successors, (87), 67 states have internal predecessors, (87), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 13:22:45,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 115 transitions. [2024-11-22 13:22:45,020 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 115 transitions. Word has length 111 [2024-11-22 13:22:45,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:22:45,020 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 115 transitions. [2024-11-22 13:22:45,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 13:22:45,021 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 115 transitions. [2024-11-22 13:22:45,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-22 13:22:45,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:22:45,023 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:22:45,031 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 13:22:45,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 13:22:45,224 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:22:45,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:22:45,225 INFO L85 PathProgramCache]: Analyzing trace with hash -173670212, now seen corresponding path program 1 times [2024-11-22 13:22:45,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:22:45,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082088730] [2024-11-22 13:22:45,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:22:45,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:22:45,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:22:45,623 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-22 13:22:45,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:22:45,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082088730] [2024-11-22 13:22:45,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082088730] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 13:22:45,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98978116] [2024-11-22 13:22:45,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:22:45,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:22:45,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:22:45,626 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 13:22:45,627 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 13:22:45,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:22:45,757 INFO L255 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 13:22:45,759 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 13:22:45,796 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 13:22:45,796 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 13:22:45,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98978116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:22:45,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 13:22:45,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-22 13:22:45,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954920048] [2024-11-22 13:22:45,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:22:45,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 13:22:45,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:22:45,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 13:22:45,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 13:22:45,800 INFO L87 Difference]: Start difference. First operand 83 states and 115 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 13:22:45,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:22:45,839 INFO L93 Difference]: Finished difference Result 166 states and 231 transitions. [2024-11-22 13:22:45,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 13:22:45,840 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2024-11-22 13:22:45,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:22:45,841 INFO L225 Difference]: With dead ends: 166 [2024-11-22 13:22:45,843 INFO L226 Difference]: Without dead ends: 86 [2024-11-22 13:22:45,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 13:22:45,844 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 1 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 13:22:45,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 325 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 13:22:45,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-22 13:22:45,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 85. [2024-11-22 13:22:45,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 69 states have (on average 1.289855072463768) internal successors, (89), 69 states have internal predecessors, (89), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 13:22:45,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 117 transitions. [2024-11-22 13:22:45,853 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 117 transitions. Word has length 111 [2024-11-22 13:22:45,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:22:45,855 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 117 transitions. [2024-11-22 13:22:45,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 13:22:45,856 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 117 transitions. [2024-11-22 13:22:45,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-22 13:22:45,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:22:45,859 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:22:45,866 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 13:22:46,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-22 13:22:46,060 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:22:46,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:22:46,061 INFO L85 PathProgramCache]: Analyzing trace with hash 506388158, now seen corresponding path program 1 times [2024-11-22 13:22:46,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:22:46,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902396017] [2024-11-22 13:22:46,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:22:46,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:22:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:22:46,248 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-22 13:22:46,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:22:46,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902396017] [2024-11-22 13:22:46,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902396017] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 13:22:46,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975945541] [2024-11-22 13:22:46,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:22:46,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:22:46,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:22:46,252 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 13:22:46,253 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 13:22:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:22:46,383 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 13:22:46,387 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 13:22:46,415 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 13:22:46,415 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 13:22:46,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975945541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:22:46,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 13:22:46,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-22 13:22:46,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623440100] [2024-11-22 13:22:46,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:22:46,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 13:22:46,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:22:46,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 13:22:46,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 13:22:46,418 INFO L87 Difference]: Start difference. First operand 85 states and 117 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 13:22:46,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:22:46,438 INFO L93 Difference]: Finished difference Result 170 states and 235 transitions. [2024-11-22 13:22:46,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 13:22:46,438 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2024-11-22 13:22:46,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:22:46,441 INFO L225 Difference]: With dead ends: 170 [2024-11-22 13:22:46,442 INFO L226 Difference]: Without dead ends: 88 [2024-11-22 13:22:46,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 13:22:46,444 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 1 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 13:22:46,446 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 326 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 13:22:46,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-22 13:22:46,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 87. [2024-11-22 13:22:46,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 71 states have (on average 1.2816901408450705) internal successors, (91), 71 states have internal predecessors, (91), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 13:22:46,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 119 transitions. [2024-11-22 13:22:46,454 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 119 transitions. Word has length 111 [2024-11-22 13:22:46,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:22:46,454 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 119 transitions. [2024-11-22 13:22:46,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 13:22:46,454 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 119 transitions. [2024-11-22 13:22:46,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-22 13:22:46,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:22:46,456 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:22:46,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 13:22:46,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:22:46,657 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:22:46,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:22:46,658 INFO L85 PathProgramCache]: Analyzing trace with hash -2013571776, now seen corresponding path program 1 times [2024-11-22 13:22:46,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:22:46,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263536294] [2024-11-22 13:22:46,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:22:46,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:22:46,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:22:46,777 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-22 13:22:46,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:22:46,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263536294] [2024-11-22 13:22:46,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263536294] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 13:22:46,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759763378] [2024-11-22 13:22:46,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:22:46,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:22:46,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:22:46,781 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 13:22:46,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 13:22:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:22:46,914 INFO L255 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 13:22:46,916 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 13:22:46,935 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 13:22:46,938 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 13:22:46,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759763378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:22:46,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 13:22:46,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-22 13:22:46,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415360244] [2024-11-22 13:22:46,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:22:46,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 13:22:46,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:22:46,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 13:22:46,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 13:22:46,940 INFO L87 Difference]: Start difference. First operand 87 states and 119 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 13:22:46,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:22:46,964 INFO L93 Difference]: Finished difference Result 174 states and 239 transitions. [2024-11-22 13:22:46,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 13:22:46,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2024-11-22 13:22:46,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:22:46,965 INFO L225 Difference]: With dead ends: 174 [2024-11-22 13:22:46,965 INFO L226 Difference]: Without dead ends: 90 [2024-11-22 13:22:46,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 13:22:46,966 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 1 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 13:22:46,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 328 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 13:22:46,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-22 13:22:46,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 89. [2024-11-22 13:22:46,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 73 states have (on average 1.273972602739726) internal successors, (93), 73 states have internal predecessors, (93), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 13:22:46,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 121 transitions. [2024-11-22 13:22:46,978 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 121 transitions. Word has length 111 [2024-11-22 13:22:46,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:22:46,978 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 121 transitions. [2024-11-22 13:22:46,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 13:22:46,979 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 121 transitions. [2024-11-22 13:22:46,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-22 13:22:46,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:22:46,981 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:22:46,989 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 13:22:47,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:22:47,187 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:22:47,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:22:47,187 INFO L85 PathProgramCache]: Analyzing trace with hash -2011724734, now seen corresponding path program 1 times [2024-11-22 13:22:47,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:22:47,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266729204] [2024-11-22 13:22:47,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:22:47,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:22:47,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:22:47,315 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-22 13:22:47,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:22:47,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266729204] [2024-11-22 13:22:47,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266729204] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 13:22:47,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124803402] [2024-11-22 13:22:47,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:22:47,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:22:47,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:22:47,318 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 13:22:47,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 13:22:47,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:22:47,446 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 13:22:47,448 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 13:22:47,471 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 13:22:47,471 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 13:22:47,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124803402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:22:47,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 13:22:47,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2024-11-22 13:22:47,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781302639] [2024-11-22 13:22:47,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:22:47,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 13:22:47,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:22:47,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 13:22:47,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:22:47,473 INFO L87 Difference]: Start difference. First operand 89 states and 121 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 13:22:47,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:22:47,490 INFO L93 Difference]: Finished difference Result 177 states and 242 transitions. [2024-11-22 13:22:47,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 13:22:47,491 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2024-11-22 13:22:47,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:22:47,491 INFO L225 Difference]: With dead ends: 177 [2024-11-22 13:22:47,492 INFO L226 Difference]: Without dead ends: 91 [2024-11-22 13:22:47,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:22:47,492 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 0 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 13:22:47,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 328 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 13:22:47,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-22 13:22:47,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-22 13:22:47,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 75 states have (on average 1.2666666666666666) internal successors, (95), 75 states have internal predecessors, (95), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 13:22:47,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 123 transitions. [2024-11-22 13:22:47,501 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 123 transitions. Word has length 111 [2024-11-22 13:22:47,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:22:47,502 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 123 transitions. [2024-11-22 13:22:47,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 13:22:47,502 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 123 transitions. [2024-11-22 13:22:47,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-22 13:22:47,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:22:47,504 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:22:47,514 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 13:22:47,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:22:47,709 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:22:47,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:22:47,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1933177509, now seen corresponding path program 1 times [2024-11-22 13:22:47,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:22:47,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367501299] [2024-11-22 13:22:47,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:22:47,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:22:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:22:48,316 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 13:22:48,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:22:48,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367501299] [2024-11-22 13:22:48,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367501299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:22:48,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:22:48,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 13:22:48,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738560708] [2024-11-22 13:22:48,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:22:48,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 13:22:48,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:22:48,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 13:22:48,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-22 13:22:48,318 INFO L87 Difference]: Start difference. First operand 91 states and 123 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 13:22:48,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:22:48,652 INFO L93 Difference]: Finished difference Result 227 states and 308 transitions. [2024-11-22 13:22:48,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 13:22:48,653 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 113 [2024-11-22 13:22:48,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:22:48,654 INFO L225 Difference]: With dead ends: 227 [2024-11-22 13:22:48,654 INFO L226 Difference]: Without dead ends: 139 [2024-11-22 13:22:48,655 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-22 13:22:48,655 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 130 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 13:22:48,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 258 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 13:22:48,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-22 13:22:48,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 103. [2024-11-22 13:22:48,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 87 states have (on average 1.2988505747126438) internal successors, (113), 87 states have internal predecessors, (113), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 13:22:48,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 141 transitions. [2024-11-22 13:22:48,662 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 141 transitions. Word has length 113 [2024-11-22 13:22:48,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:22:48,663 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 141 transitions. [2024-11-22 13:22:48,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 13:22:48,663 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 141 transitions. [2024-11-22 13:22:48,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-22 13:22:48,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:22:48,664 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:22:48,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 13:22:48,664 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:22:48,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:22:48,665 INFO L85 PathProgramCache]: Analyzing trace with hash -633094042, now seen corresponding path program 1 times [2024-11-22 13:22:48,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:22:48,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655962680] [2024-11-22 13:22:48,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:22:48,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:22:48,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:22:49,190 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 13:22:49,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:22:49,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655962680] [2024-11-22 13:22:49,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655962680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:22:49,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:22:49,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 13:22:49,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575282261] [2024-11-22 13:22:49,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:22:49,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 13:22:49,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:22:49,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 13:22:49,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 13:22:49,192 INFO L87 Difference]: Start difference. First operand 103 states and 141 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 13:22:49,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:22:49,526 INFO L93 Difference]: Finished difference Result 256 states and 349 transitions. [2024-11-22 13:22:49,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 13:22:49,528 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 113 [2024-11-22 13:22:49,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:22:49,529 INFO L225 Difference]: With dead ends: 256 [2024-11-22 13:22:49,529 INFO L226 Difference]: Without dead ends: 156 [2024-11-22 13:22:49,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-22 13:22:49,530 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 269 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 13:22:49,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 350 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 13:22:49,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-22 13:22:49,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 123. [2024-11-22 13:22:49,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 107 states have (on average 1.308411214953271) internal successors, (140), 107 states have internal predecessors, (140), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 13:22:49,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 168 transitions. [2024-11-22 13:22:49,545 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 168 transitions. Word has length 113 [2024-11-22 13:22:49,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:22:49,545 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 168 transitions. [2024-11-22 13:22:49,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 13:22:49,545 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 168 transitions. [2024-11-22 13:22:49,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-22 13:22:49,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:22:49,546 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:22:49,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 13:22:49,546 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:22:49,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:22:49,547 INFO L85 PathProgramCache]: Analyzing trace with hash -776494331, now seen corresponding path program 1 times [2024-11-22 13:22:49,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:22:49,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139305678] [2024-11-22 13:22:49,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:22:49,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:22:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:22:51,050 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 13:22:51,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:22:51,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139305678] [2024-11-22 13:22:51,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139305678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:22:51,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:22:51,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-22 13:22:51,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006939721] [2024-11-22 13:22:51,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:22:51,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 13:22:51,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:22:51,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 13:22:51,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-22 13:22:51,052 INFO L87 Difference]: Start difference. First operand 123 states and 168 transitions. Second operand has 13 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 13 states have internal predecessors, (47), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-22 13:22:51,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:22:51,987 INFO L93 Difference]: Finished difference Result 336 states and 449 transitions. [2024-11-22 13:22:51,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 13:22:51,987 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 13 states have internal predecessors, (47), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 114 [2024-11-22 13:22:51,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:22:51,988 INFO L225 Difference]: With dead ends: 336 [2024-11-22 13:22:51,988 INFO L226 Difference]: Without dead ends: 216 [2024-11-22 13:22:51,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2024-11-22 13:22:51,989 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 234 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 13:22:51,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 481 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 13:22:51,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-22 13:22:52,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 161. [2024-11-22 13:22:52,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 142 states have (on average 1.295774647887324) internal successors, (184), 143 states have internal predecessors, (184), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-22 13:22:52,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 216 transitions. [2024-11-22 13:22:52,006 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 216 transitions. Word has length 114 [2024-11-22 13:22:52,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:22:52,006 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 216 transitions. [2024-11-22 13:22:52,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 13 states have internal predecessors, (47), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-22 13:22:52,007 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 216 transitions. [2024-11-22 13:22:52,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 13:22:52,007 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:22:52,008 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:22:52,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 13:22:52,008 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:22:52,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:22:52,008 INFO L85 PathProgramCache]: Analyzing trace with hash 200671924, now seen corresponding path program 1 times [2024-11-22 13:22:52,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:22:52,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862212790] [2024-11-22 13:22:52,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:22:52,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:22:52,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:22:55,410 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 13:22:55,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:22:55,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862212790] [2024-11-22 13:22:55,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862212790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:22:55,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:22:55,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-22 13:22:55,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006073802] [2024-11-22 13:22:55,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:22:55,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-22 13:22:55,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:22:55,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-22 13:22:55,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2024-11-22 13:22:55,413 INFO L87 Difference]: Start difference. First operand 161 states and 216 transitions. Second operand has 17 states, 15 states have (on average 3.2) internal successors, (48), 17 states have internal predecessors, (48), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-22 13:22:56,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:22:56,979 INFO L93 Difference]: Finished difference Result 392 states and 522 transitions. [2024-11-22 13:22:56,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 13:22:56,980 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.2) internal successors, (48), 17 states have internal predecessors, (48), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 5 states have call successors, (14) Word has length 115 [2024-11-22 13:22:56,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:22:56,982 INFO L225 Difference]: With dead ends: 392 [2024-11-22 13:22:56,982 INFO L226 Difference]: Without dead ends: 234 [2024-11-22 13:22:56,983 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=140, Invalid=510, Unknown=0, NotChecked=0, Total=650 [2024-11-22 13:22:56,983 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 253 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 1021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 13:22:56,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 539 Invalid, 1021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 13:22:56,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-22 13:22:56,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 157. [2024-11-22 13:22:57,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 138 states have (on average 1.289855072463768) internal successors, (178), 139 states have internal predecessors, (178), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-22 13:22:57,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 210 transitions. [2024-11-22 13:22:57,001 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 210 transitions. Word has length 115 [2024-11-22 13:22:57,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:22:57,002 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 210 transitions. [2024-11-22 13:22:57,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.2) internal successors, (48), 17 states have internal predecessors, (48), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-22 13:22:57,002 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 210 transitions. [2024-11-22 13:22:57,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 13:22:57,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:22:57,004 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:22:57,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 13:22:57,004 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:22:57,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:22:57,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1223887013, now seen corresponding path program 1 times [2024-11-22 13:22:57,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:22:57,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234693291] [2024-11-22 13:22:57,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:22:57,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:22:57,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:22:57,441 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 13:22:57,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:22:57,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234693291] [2024-11-22 13:22:57,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234693291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:22:57,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:22:57,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 13:22:57,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430774842] [2024-11-22 13:22:57,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:22:57,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 13:22:57,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:22:57,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 13:22:57,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:22:57,443 INFO L87 Difference]: Start difference. First operand 157 states and 210 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 13:22:57,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:22:57,669 INFO L93 Difference]: Finished difference Result 302 states and 403 transitions. [2024-11-22 13:22:57,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 13:22:57,670 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 115 [2024-11-22 13:22:57,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:22:57,671 INFO L225 Difference]: With dead ends: 302 [2024-11-22 13:22:57,672 INFO L226 Difference]: Without dead ends: 148 [2024-11-22 13:22:57,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-22 13:22:57,673 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 183 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 13:22:57,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 220 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 13:22:57,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-22 13:22:57,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 146. [2024-11-22 13:22:57,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 127 states have (on average 1.2755905511811023) internal successors, (162), 128 states have internal predecessors, (162), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-22 13:22:57,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 194 transitions. [2024-11-22 13:22:57,688 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 194 transitions. Word has length 115 [2024-11-22 13:22:57,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:22:57,688 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 194 transitions. [2024-11-22 13:22:57,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 13:22:57,689 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 194 transitions. [2024-11-22 13:22:57,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 13:22:57,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:22:57,690 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:22:57,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 13:22:57,691 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:22:57,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:22:57,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1644013042, now seen corresponding path program 1 times [2024-11-22 13:22:57,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:22:57,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904487501] [2024-11-22 13:22:57,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:22:57,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:22:57,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:22:58,862 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 13:22:58,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:22:58,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904487501] [2024-11-22 13:22:58,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904487501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:22:58,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:22:58,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 13:22:58,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736686960] [2024-11-22 13:22:58,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:22:58,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 13:22:58,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:22:58,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 13:22:58,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-22 13:22:58,864 INFO L87 Difference]: Start difference. First operand 146 states and 194 transitions. Second operand has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-22 13:22:59,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:22:59,347 INFO L93 Difference]: Finished difference Result 216 states and 280 transitions. [2024-11-22 13:22:59,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 13:22:59,347 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 115 [2024-11-22 13:22:59,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:22:59,348 INFO L225 Difference]: With dead ends: 216 [2024-11-22 13:22:59,348 INFO L226 Difference]: Without dead ends: 214 [2024-11-22 13:22:59,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-22 13:22:59,349 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 324 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 13:22:59,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 295 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 13:22:59,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-22 13:22:59,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 190. [2024-11-22 13:22:59,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 171 states have (on average 1.286549707602339) internal successors, (220), 172 states have internal predecessors, (220), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-22 13:22:59,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 252 transitions. [2024-11-22 13:22:59,370 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 252 transitions. Word has length 115 [2024-11-22 13:22:59,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:22:59,370 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 252 transitions. [2024-11-22 13:22:59,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-22 13:22:59,370 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 252 transitions. [2024-11-22 13:22:59,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 13:22:59,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:22:59,371 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:22:59,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 13:22:59,372 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:22:59,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:22:59,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1645860084, now seen corresponding path program 1 times [2024-11-22 13:22:59,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:22:59,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060013792] [2024-11-22 13:22:59,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:22:59,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:22:59,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:23:00,138 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 13:23:00,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:23:00,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060013792] [2024-11-22 13:23:00,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060013792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:23:00,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:23:00,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 13:23:00,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626801696] [2024-11-22 13:23:00,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:23:00,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 13:23:00,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:23:00,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 13:23:00,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-22 13:23:00,141 INFO L87 Difference]: Start difference. First operand 190 states and 252 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 13:23:00,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:23:00,679 INFO L93 Difference]: Finished difference Result 403 states and 528 transitions. [2024-11-22 13:23:00,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 13:23:00,679 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 115 [2024-11-22 13:23:00,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:23:00,680 INFO L225 Difference]: With dead ends: 403 [2024-11-22 13:23:00,680 INFO L226 Difference]: Without dead ends: 216 [2024-11-22 13:23:00,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-11-22 13:23:00,681 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 219 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 13:23:00,681 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 331 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 13:23:00,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-22 13:23:00,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 190. [2024-11-22 13:23:00,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 171 states have (on average 1.2748538011695907) internal successors, (218), 172 states have internal predecessors, (218), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-22 13:23:00,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 250 transitions. [2024-11-22 13:23:00,704 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 250 transitions. Word has length 115 [2024-11-22 13:23:00,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:23:00,704 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 250 transitions. [2024-11-22 13:23:00,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 13:23:00,704 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 250 transitions. [2024-11-22 13:23:00,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 13:23:00,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:23:00,705 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:23:00,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 13:23:00,706 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:23:00,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:23:00,706 INFO L85 PathProgramCache]: Analyzing trace with hash -874099850, now seen corresponding path program 1 times [2024-11-22 13:23:00,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:23:00,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441289696] [2024-11-22 13:23:00,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:23:00,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:23:00,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:23:01,432 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 13:23:01,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:23:01,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441289696] [2024-11-22 13:23:01,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441289696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:23:01,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:23:01,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 13:23:01,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810242734] [2024-11-22 13:23:01,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:23:01,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 13:23:01,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:23:01,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 13:23:01,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-22 13:23:01,435 INFO L87 Difference]: Start difference. First operand 190 states and 250 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 13:23:01,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:23:01,810 INFO L93 Difference]: Finished difference Result 401 states and 522 transitions. [2024-11-22 13:23:01,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 13:23:01,811 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 115 [2024-11-22 13:23:01,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:23:01,812 INFO L225 Difference]: With dead ends: 401 [2024-11-22 13:23:01,812 INFO L226 Difference]: Without dead ends: 214 [2024-11-22 13:23:01,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-22 13:23:01,812 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 249 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 13:23:01,813 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 216 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 13:23:01,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-22 13:23:01,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 190. [2024-11-22 13:23:01,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 171 states have (on average 1.263157894736842) internal successors, (216), 172 states have internal predecessors, (216), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-22 13:23:01,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 248 transitions. [2024-11-22 13:23:01,832 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 248 transitions. Word has length 115 [2024-11-22 13:23:01,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:23:01,832 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 248 transitions. [2024-11-22 13:23:01,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 13:23:01,833 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 248 transitions. [2024-11-22 13:23:01,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 13:23:01,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:23:01,833 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:23:01,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 13:23:01,834 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:23:01,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:23:01,834 INFO L85 PathProgramCache]: Analyzing trace with hash -194041480, now seen corresponding path program 1 times [2024-11-22 13:23:01,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:23:01,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693216598] [2024-11-22 13:23:01,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:23:01,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:23:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:23:02,063 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 13:23:02,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:23:02,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693216598] [2024-11-22 13:23:02,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693216598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:23:02,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:23:02,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 13:23:02,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250108587] [2024-11-22 13:23:02,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:23:02,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 13:23:02,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:23:02,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 13:23:02,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 13:23:02,065 INFO L87 Difference]: Start difference. First operand 190 states and 248 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 13:23:02,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:23:02,296 INFO L93 Difference]: Finished difference Result 507 states and 654 transitions. [2024-11-22 13:23:02,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 13:23:02,297 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 115 [2024-11-22 13:23:02,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:23:02,298 INFO L225 Difference]: With dead ends: 507 [2024-11-22 13:23:02,298 INFO L226 Difference]: Without dead ends: 320 [2024-11-22 13:23:02,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-22 13:23:02,299 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 261 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 13:23:02,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 316 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 13:23:02,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-11-22 13:23:02,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 254. [2024-11-22 13:23:02,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 235 states have (on average 1.251063829787234) internal successors, (294), 236 states have internal predecessors, (294), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-22 13:23:02,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 326 transitions. [2024-11-22 13:23:02,320 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 326 transitions. Word has length 115 [2024-11-22 13:23:02,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:23:02,320 INFO L471 AbstractCegarLoop]: Abstraction has 254 states and 326 transitions. [2024-11-22 13:23:02,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 13:23:02,321 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 326 transitions. [2024-11-22 13:23:02,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-22 13:23:02,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:23:02,321 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:23:02,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 13:23:02,322 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:23:02,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:23:02,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1310951966, now seen corresponding path program 1 times [2024-11-22 13:23:02,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:23:02,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949347182] [2024-11-22 13:23:02,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:23:02,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:23:02,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:23:02,822 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-22 13:23:02,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:23:02,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949347182] [2024-11-22 13:23:02,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949347182] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 13:23:02,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009364983] [2024-11-22 13:23:02,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:23:02,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:23:02,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:23:02,825 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 13:23:02,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 13:23:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:23:02,972 INFO L255 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-22 13:23:02,979 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 13:23:04,254 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 13:23:04,563 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 46 treesize of output 35 [2024-11-22 13:23:04,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:04,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:04,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:04,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:04,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:04,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:04,606 INFO L349 Elim1Store]: treesize reduction 72, result has 26.5 percent of original size [2024-11-22 13:23:04,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 45 [2024-11-22 13:23:04,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:04,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:04,635 INFO L349 Elim1Store]: treesize reduction 8, result has 75.8 percent of original size [2024-11-22 13:23:04,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 53 [2024-11-22 13:23:04,664 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 1 proven. 99 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 13:23:04,665 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 13:23:04,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009364983] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 13:23:04,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 13:23:04,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 16 [2024-11-22 13:23:04,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274981042] [2024-11-22 13:23:04,761 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 13:23:04,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 13:23:04,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:23:04,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 13:23:04,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-22 13:23:04,763 INFO L87 Difference]: Start difference. First operand 254 states and 326 transitions. Second operand has 16 states, 13 states have (on average 6.230769230769231) internal successors, (81), 14 states have internal predecessors, (81), 6 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (28), 5 states have call predecessors, (28), 6 states have call successors, (28) [2024-11-22 13:23:05,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:23:05,653 INFO L93 Difference]: Finished difference Result 420 states and 539 transitions. [2024-11-22 13:23:05,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-22 13:23:05,656 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 6.230769230769231) internal successors, (81), 14 states have internal predecessors, (81), 6 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (28), 5 states have call predecessors, (28), 6 states have call successors, (28) Word has length 116 [2024-11-22 13:23:05,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:23:05,657 INFO L225 Difference]: With dead ends: 420 [2024-11-22 13:23:05,657 INFO L226 Difference]: Without dead ends: 169 [2024-11-22 13:23:05,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 139 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=146, Invalid=556, Unknown=0, NotChecked=0, Total=702 [2024-11-22 13:23:05,659 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 77 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 13:23:05,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 359 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 13:23:05,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-22 13:23:05,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 167. [2024-11-22 13:23:05,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 147 states have (on average 1.2312925170068028) internal successors, (181), 148 states have internal predecessors, (181), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-22 13:23:05,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 213 transitions. [2024-11-22 13:23:05,683 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 213 transitions. Word has length 116 [2024-11-22 13:23:05,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:23:05,683 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 213 transitions. [2024-11-22 13:23:05,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 6.230769230769231) internal successors, (81), 14 states have internal predecessors, (81), 6 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (28), 5 states have call predecessors, (28), 6 states have call successors, (28) [2024-11-22 13:23:05,683 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 213 transitions. [2024-11-22 13:23:05,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-22 13:23:05,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:23:05,684 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:23:05,693 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 13:23:05,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-22 13:23:05,885 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:23:05,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:23:05,886 INFO L85 PathProgramCache]: Analyzing trace with hash -721049333, now seen corresponding path program 1 times [2024-11-22 13:23:05,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:23:05,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049481748] [2024-11-22 13:23:05,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:23:05,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:23:05,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:23:06,340 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 13:23:06,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:23:06,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049481748] [2024-11-22 13:23:06,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049481748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:23:06,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:23:06,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 13:23:06,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921668490] [2024-11-22 13:23:06,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:23:06,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 13:23:06,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:23:06,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 13:23:06,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-22 13:23:06,342 INFO L87 Difference]: Start difference. First operand 167 states and 213 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 13:23:06,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:23:06,562 INFO L93 Difference]: Finished difference Result 331 states and 423 transitions. [2024-11-22 13:23:06,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 13:23:06,562 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2024-11-22 13:23:06,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:23:06,563 INFO L225 Difference]: With dead ends: 331 [2024-11-22 13:23:06,563 INFO L226 Difference]: Without dead ends: 167 [2024-11-22 13:23:06,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-22 13:23:06,564 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 131 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 13:23:06,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 172 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 13:23:06,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-22 13:23:06,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2024-11-22 13:23:06,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 147 states have (on average 1.2040816326530612) internal successors, (177), 148 states have internal predecessors, (177), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-22 13:23:06,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 209 transitions. [2024-11-22 13:23:06,588 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 209 transitions. Word has length 117 [2024-11-22 13:23:06,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:23:06,589 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 209 transitions. [2024-11-22 13:23:06,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 13:23:06,589 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 209 transitions. [2024-11-22 13:23:06,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-22 13:23:06,589 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:23:06,590 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:23:06,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 13:23:06,590 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:23:06,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:23:06,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1129079964, now seen corresponding path program 1 times [2024-11-22 13:23:06,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:23:06,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671808747] [2024-11-22 13:23:06,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:23:06,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:23:06,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:23:08,433 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 13:23:08,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:23:08,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671808747] [2024-11-22 13:23:08,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671808747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:23:08,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:23:08,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 13:23:08,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312719936] [2024-11-22 13:23:08,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:23:08,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 13:23:08,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:23:08,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 13:23:08,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-22 13:23:08,435 INFO L87 Difference]: Start difference. First operand 167 states and 209 transitions. Second operand has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-22 13:23:09,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:23:09,051 INFO L93 Difference]: Finished difference Result 177 states and 220 transitions. [2024-11-22 13:23:09,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 13:23:09,052 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) Word has length 119 [2024-11-22 13:23:09,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:23:09,053 INFO L225 Difference]: With dead ends: 177 [2024-11-22 13:23:09,053 INFO L226 Difference]: Without dead ends: 175 [2024-11-22 13:23:09,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-22 13:23:09,054 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 287 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 13:23:09,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 235 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 13:23:09,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-22 13:23:09,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 173. [2024-11-22 13:23:09,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 153 states have (on average 1.196078431372549) internal successors, (183), 154 states have internal predecessors, (183), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-22 13:23:09,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 215 transitions. [2024-11-22 13:23:09,080 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 215 transitions. Word has length 119 [2024-11-22 13:23:09,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:23:09,080 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 215 transitions. [2024-11-22 13:23:09,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-22 13:23:09,081 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 215 transitions. [2024-11-22 13:23:09,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-22 13:23:09,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:23:09,081 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:23:09,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 13:23:09,081 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:23:09,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:23:09,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1127232922, now seen corresponding path program 1 times [2024-11-22 13:23:09,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:23:09,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80998386] [2024-11-22 13:23:09,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:23:09,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:23:09,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:23:10,130 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 13:23:10,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:23:10,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80998386] [2024-11-22 13:23:10,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80998386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:23:10,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:23:10,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 13:23:10,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965015498] [2024-11-22 13:23:10,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:23:10,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 13:23:10,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:23:10,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 13:23:10,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-22 13:23:10,133 INFO L87 Difference]: Start difference. First operand 173 states and 215 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 13:23:10,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:23:10,524 INFO L93 Difference]: Finished difference Result 345 states and 429 transitions. [2024-11-22 13:23:10,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 13:23:10,526 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 119 [2024-11-22 13:23:10,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:23:10,527 INFO L225 Difference]: With dead ends: 345 [2024-11-22 13:23:10,527 INFO L226 Difference]: Without dead ends: 175 [2024-11-22 13:23:10,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2024-11-22 13:23:10,528 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 186 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 13:23:10,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 203 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 13:23:10,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-22 13:23:10,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 173. [2024-11-22 13:23:10,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 153 states have (on average 1.1830065359477124) internal successors, (181), 154 states have internal predecessors, (181), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-22 13:23:10,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 213 transitions. [2024-11-22 13:23:10,567 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 213 transitions. Word has length 119 [2024-11-22 13:23:10,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:23:10,567 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 213 transitions. [2024-11-22 13:23:10,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 13:23:10,567 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 213 transitions. [2024-11-22 13:23:10,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-22 13:23:10,568 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:23:10,568 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:23:10,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 13:23:10,569 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:23:10,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:23:10,569 INFO L85 PathProgramCache]: Analyzing trace with hash 647774440, now seen corresponding path program 1 times [2024-11-22 13:23:10,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:23:10,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061798512] [2024-11-22 13:23:10,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:23:10,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:23:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:23:11,446 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 13:23:11,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:23:11,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061798512] [2024-11-22 13:23:11,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061798512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:23:11,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:23:11,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 13:23:11,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126751280] [2024-11-22 13:23:11,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:23:11,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 13:23:11,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:23:11,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 13:23:11,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-22 13:23:11,447 INFO L87 Difference]: Start difference. First operand 173 states and 213 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 13:23:11,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:23:11,764 INFO L93 Difference]: Finished difference Result 343 states and 423 transitions. [2024-11-22 13:23:11,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 13:23:11,764 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 119 [2024-11-22 13:23:11,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:23:11,765 INFO L225 Difference]: With dead ends: 343 [2024-11-22 13:23:11,765 INFO L226 Difference]: Without dead ends: 173 [2024-11-22 13:23:11,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-22 13:23:11,766 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 259 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 13:23:11,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 162 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 13:23:11,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-22 13:23:11,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2024-11-22 13:23:11,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 153 states have (on average 1.1699346405228759) internal successors, (179), 154 states have internal predecessors, (179), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-22 13:23:11,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 211 transitions. [2024-11-22 13:23:11,797 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 211 transitions. Word has length 119 [2024-11-22 13:23:11,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:23:11,798 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 211 transitions. [2024-11-22 13:23:11,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 13:23:11,798 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 211 transitions. [2024-11-22 13:23:11,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-22 13:23:11,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:23:11,799 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:23:11,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 13:23:11,799 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:23:11,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:23:11,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1919891586, now seen corresponding path program 1 times [2024-11-22 13:23:11,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:23:11,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308744270] [2024-11-22 13:23:11,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:23:11,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:23:11,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 13:23:11,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1354180421] [2024-11-22 13:23:11,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:23:11,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:23:11,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:23:11,883 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 13:23:11,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 13:23:12,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:23:12,090 INFO L255 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-22 13:23:12,094 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 13:23:12,123 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 46 treesize of output 45 [2024-11-22 13:23:12,287 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 61 treesize of output 53 [2024-11-22 13:23:14,041 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 13:23:14,084 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 13:23:14,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:14,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:14,211 INFO L349 Elim1Store]: treesize reduction 72, result has 35.1 percent of original size [2024-11-22 13:23:14,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 73 [2024-11-22 13:23:14,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:14,361 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 34 treesize of output 18 [2024-11-22 13:23:14,379 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 13:23:14,379 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 13:23:14,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:23:14,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308744270] [2024-11-22 13:23:14,380 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 13:23:14,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354180421] [2024-11-22 13:23:14,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354180421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:23:14,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:23:14,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 13:23:14,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507823579] [2024-11-22 13:23:14,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:23:14,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 13:23:14,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:23:14,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 13:23:14,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-22 13:23:14,382 INFO L87 Difference]: Start difference. First operand 173 states and 211 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 13:23:14,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:23:14,932 INFO L93 Difference]: Finished difference Result 580 states and 704 transitions. [2024-11-22 13:23:14,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 13:23:14,933 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2024-11-22 13:23:14,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:23:14,935 INFO L225 Difference]: With dead ends: 580 [2024-11-22 13:23:14,936 INFO L226 Difference]: Without dead ends: 410 [2024-11-22 13:23:14,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-11-22 13:23:14,936 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 191 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 13:23:14,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 365 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 13:23:14,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2024-11-22 13:23:14,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 256. [2024-11-22 13:23:14,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 220 states have (on average 1.1727272727272726) internal successors, (258), 221 states have internal predecessors, (258), 30 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-22 13:23:14,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 318 transitions. [2024-11-22 13:23:14,988 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 318 transitions. Word has length 120 [2024-11-22 13:23:14,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:23:14,988 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 318 transitions. [2024-11-22 13:23:14,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 13:23:14,988 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 318 transitions. [2024-11-22 13:23:14,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-22 13:23:14,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:23:14,989 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:23:14,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-22 13:23:15,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:23:15,190 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:23:15,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:23:15,191 INFO L85 PathProgramCache]: Analyzing trace with hash 293814618, now seen corresponding path program 1 times [2024-11-22 13:23:15,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:23:15,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860010672] [2024-11-22 13:23:15,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:23:15,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:23:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:23:15,444 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-22 13:23:15,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:23:15,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860010672] [2024-11-22 13:23:15,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860010672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:23:15,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:23:15,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 13:23:15,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685944778] [2024-11-22 13:23:15,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:23:15,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 13:23:15,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:23:15,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 13:23:15,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-22 13:23:15,446 INFO L87 Difference]: Start difference. First operand 256 states and 318 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 13:23:15,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:23:15,772 INFO L93 Difference]: Finished difference Result 524 states and 647 transitions. [2024-11-22 13:23:15,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 13:23:15,773 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2024-11-22 13:23:15,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:23:15,774 INFO L225 Difference]: With dead ends: 524 [2024-11-22 13:23:15,775 INFO L226 Difference]: Without dead ends: 354 [2024-11-22 13:23:15,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-22 13:23:15,776 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 129 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 13:23:15,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 563 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 13:23:15,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-22 13:23:15,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 298. [2024-11-22 13:23:15,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 262 states have (on average 1.1717557251908397) internal successors, (307), 263 states have internal predecessors, (307), 30 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-22 13:23:15,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 367 transitions. [2024-11-22 13:23:15,831 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 367 transitions. Word has length 120 [2024-11-22 13:23:15,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:23:15,833 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 367 transitions. [2024-11-22 13:23:15,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 13:23:15,833 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 367 transitions. [2024-11-22 13:23:15,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-22 13:23:15,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:23:15,838 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:23:15,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 13:23:15,838 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:23:15,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:23:15,839 INFO L85 PathProgramCache]: Analyzing trace with hash 710658479, now seen corresponding path program 1 times [2024-11-22 13:23:15,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:23:15,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095776396] [2024-11-22 13:23:15,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:23:15,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:23:15,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 13:23:15,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [74611701] [2024-11-22 13:23:15,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:23:15,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:23:15,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:23:15,952 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 13:23:15,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 13:23:16,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:23:16,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 80 conjuncts are in the unsatisfiable core [2024-11-22 13:23:16,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 13:23:16,238 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 46 treesize of output 45 [2024-11-22 13:23:16,501 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 61 treesize of output 53 [2024-11-22 13:23:17,090 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 13:23:17,617 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 13:23:18,087 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 13:23:18,575 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 13:23:19,075 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 13:23:19,548 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 13:23:20,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:20,194 INFO L349 Elim1Store]: treesize reduction 329, result has 25.1 percent of original size [2024-11-22 13:23:20,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 76 treesize of output 178 [2024-11-22 13:23:20,437 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 13:23:20,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 52 [2024-11-22 13:23:20,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:20,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:20,518 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 13:23:20,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2024-11-22 13:23:20,560 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-22 13:23:20,627 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-22 13:23:21,278 INFO L349 Elim1Store]: treesize reduction 96, result has 41.8 percent of original size [2024-11-22 13:23:21,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 122 treesize of output 170 [2024-11-22 13:23:23,517 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 9 treesize of output 7 [2024-11-22 13:23:23,525 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 9 treesize of output 7 [2024-11-22 13:23:23,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 19 treesize of output 15 [2024-11-22 13:23:23,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:23,729 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-22 13:23:23,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 22 [2024-11-22 13:23:23,768 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 9 treesize of output 7 [2024-11-22 13:23:23,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:23,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 19 treesize of output 15 [2024-11-22 13:23:23,969 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 9 treesize of output 7 [2024-11-22 13:23:24,151 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 9 treesize of output 7 [2024-11-22 13:23:24,290 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 244 treesize of output 206 [2024-11-22 13:23:24,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:24,318 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 13:23:24,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 206 treesize of output 248 [2024-11-22 13:23:35,567 INFO L349 Elim1Store]: treesize reduction 672, result has 23.4 percent of original size [2024-11-22 13:23:35,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 90 case distinctions, treesize of input 463 treesize of output 593 [2024-11-22 13:23:42,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:42,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:42,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2024-11-22 13:23:42,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:42,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:42,682 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 13:23:42,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 81 [2024-11-22 13:23:42,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:42,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:42,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2024-11-22 13:23:42,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:42,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:42,876 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-11-22 13:23:42,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 28 [2024-11-22 13:23:42,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:42,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:42,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:42,893 INFO L349 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2024-11-22 13:23:42,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 29 [2024-11-22 13:23:42,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:42,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:42,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2024-11-22 13:23:42,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:42,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:42,957 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 13:23:42,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 101 [2024-11-22 13:23:43,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:43,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:43,118 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-11-22 13:23:43,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 28 [2024-11-22 13:23:43,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:43,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:43,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:43,147 INFO L349 Elim1Store]: treesize reduction 45, result has 8.2 percent of original size [2024-11-22 13:23:43,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 39 [2024-11-22 13:23:43,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:43,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:43,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-11-22 13:23:43,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:43,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:43,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2024-11-22 13:23:43,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:43,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:43,248 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 13:23:43,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 75 treesize of output 85 [2024-11-22 13:23:43,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:43,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:43,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2024-11-22 13:23:43,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:43,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:43,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2024-11-22 13:23:43,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:43,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:43,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-11-22 13:23:43,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:43,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:43,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-11-22 13:23:43,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:43,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:43,815 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-11-22 13:23:43,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 28 [2024-11-22 13:23:43,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:43,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:43,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2024-11-22 13:23:44,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:44,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:44,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:44,077 INFO L349 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2024-11-22 13:23:44,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 32 [2024-11-22 13:23:44,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:44,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:44,144 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-11-22 13:23:44,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 28 [2024-11-22 13:23:44,355 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 46 treesize of output 30 [2024-11-22 13:23:44,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:44,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 13:23:44,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2024-11-22 13:23:44,427 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 13:23:44,473 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 13:23:44,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2024-11-22 13:23:44,643 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 36 treesize of output 20 [2024-11-22 13:23:44,663 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-22 13:23:44,663 INFO L311 TraceCheckSpWp]: Computing backward predicates...