./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash be53c51dc83e5173157f1fa4471313025cf2f600c0bad4f77c441750f4d9f9e8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 02:11:32,586 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 02:11:32,687 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-10 02:11:32,695 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 02:11:32,695 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 02:11:32,720 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 02:11:32,721 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 02:11:32,721 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 02:11:32,722 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 02:11:32,722 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 02:11:32,722 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 02:11:32,723 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 02:11:32,723 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 02:11:32,724 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 02:11:32,724 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 02:11:32,724 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 02:11:32,725 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 02:11:32,725 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 02:11:32,726 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 02:11:32,726 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 02:11:32,726 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 02:11:32,727 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 02:11:32,729 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 02:11:32,730 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 02:11:32,730 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 02:11:32,730 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 02:11:32,730 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 02:11:32,731 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 02:11:32,731 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 02:11:32,731 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 02:11:32,731 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 02:11:32,732 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 02:11:32,732 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 02:11:32,735 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 02:11:32,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 02:11:32,736 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 02:11:32,736 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 02:11:32,736 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 02:11:32,736 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 02:11:32,736 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be53c51dc83e5173157f1fa4471313025cf2f600c0bad4f77c441750f4d9f9e8 [2024-11-10 02:11:32,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 02:11:33,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 02:11:33,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 02:11:33,013 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 02:11:33,014 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 02:11:33,015 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c [2024-11-10 02:11:34,537 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 02:11:34,755 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 02:11:34,755 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c [2024-11-10 02:11:34,767 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/706d0d4a9/83114f0fffe540ca952beb76d1dafd83/FLAG2977e0349 [2024-11-10 02:11:35,113 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/706d0d4a9/83114f0fffe540ca952beb76d1dafd83 [2024-11-10 02:11:35,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 02:11:35,118 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 02:11:35,121 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 02:11:35,122 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 02:11:35,127 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 02:11:35,128 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:11:35" (1/1) ... [2024-11-10 02:11:35,129 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@456624e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:11:35, skipping insertion in model container [2024-11-10 02:11:35,129 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:11:35" (1/1) ... [2024-11-10 02:11:35,166 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 02:11:35,380 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c[1247,1260] [2024-11-10 02:11:35,546 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 02:11:35,570 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 02:11:35,581 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c[1247,1260] [2024-11-10 02:11:35,658 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 02:11:35,674 INFO L204 MainTranslator]: Completed translation [2024-11-10 02:11:35,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:11:35 WrapperNode [2024-11-10 02:11:35,675 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 02:11:35,676 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 02:11:35,676 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 02:11:35,676 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 02:11:35,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:11:35" (1/1) ... [2024-11-10 02:11:35,706 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:11:35" (1/1) ... [2024-11-10 02:11:35,793 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 783 [2024-11-10 02:11:35,794 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 02:11:35,795 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 02:11:35,795 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 02:11:35,795 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 02:11:35,806 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:11:35" (1/1) ... [2024-11-10 02:11:35,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:11:35" (1/1) ... [2024-11-10 02:11:35,824 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:11:35" (1/1) ... [2024-11-10 02:11:35,870 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-10 02:11:35,873 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:11:35" (1/1) ... [2024-11-10 02:11:35,874 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:11:35" (1/1) ... [2024-11-10 02:11:35,906 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:11:35" (1/1) ... [2024-11-10 02:11:35,914 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:11:35" (1/1) ... [2024-11-10 02:11:35,928 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:11:35" (1/1) ... [2024-11-10 02:11:35,941 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:11:35" (1/1) ... [2024-11-10 02:11:35,957 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 02:11:35,958 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 02:11:35,959 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 02:11:35,959 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 02:11:35,960 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:11:35" (1/1) ... [2024-11-10 02:11:35,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 02:11:35,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 02:11:35,997 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) [2024-11-10 02:11:36,003 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 [2024-11-10 02:11:36,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 02:11:36,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 02:11:36,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 02:11:36,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 02:11:36,204 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 02:11:36,206 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 02:11:37,210 INFO L? ?]: Removed 472 outVars from TransFormulas that were not future-live. [2024-11-10 02:11:37,210 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 02:11:37,268 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 02:11:37,269 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 02:11:37,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:11:37 BoogieIcfgContainer [2024-11-10 02:11:37,271 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 02:11:37,273 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 02:11:37,273 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 02:11:37,277 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 02:11:37,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:11:35" (1/3) ... [2024-11-10 02:11:37,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62a80d36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:11:37, skipping insertion in model container [2024-11-10 02:11:37,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:11:35" (2/3) ... [2024-11-10 02:11:37,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62a80d36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:11:37, skipping insertion in model container [2024-11-10 02:11:37,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:11:37" (3/3) ... [2024-11-10 02:11:37,280 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Vlunc.c [2024-11-10 02:11:37,297 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 02:11:37,298 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 02:11:37,372 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 02:11:37,380 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;@5f7dddec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 02:11:37,381 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 02:11:37,386 INFO L276 IsEmpty]: Start isEmpty. Operand has 181 states, 179 states have (on average 1.4860335195530727) internal successors, (266), 180 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:37,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-10 02:11:37,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:11:37,395 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:11:37,395 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:11:37,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:11:37,400 INFO L85 PathProgramCache]: Analyzing trace with hash -2121859109, now seen corresponding path program 1 times [2024-11-10 02:11:37,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:11:37,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569248327] [2024-11-10 02:11:37,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:11:37,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:11:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:11:38,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:11:38,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:11:38,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569248327] [2024-11-10 02:11:38,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569248327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:11:38,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:11:38,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 02:11:38,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718297097] [2024-11-10 02:11:38,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:11:38,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 02:11:38,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:11:38,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 02:11:38,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:11:38,438 INFO L87 Difference]: Start difference. First operand has 181 states, 179 states have (on average 1.4860335195530727) internal successors, (266), 180 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:38,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:11:38,621 INFO L93 Difference]: Finished difference Result 333 states and 493 transitions. [2024-11-10 02:11:38,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 02:11:38,627 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-10 02:11:38,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:11:38,641 INFO L225 Difference]: With dead ends: 333 [2024-11-10 02:11:38,642 INFO L226 Difference]: Without dead ends: 178 [2024-11-10 02:11:38,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:11:38,649 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 0 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 02:11:38,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 643 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 02:11:38,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-11-10 02:11:38,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2024-11-10 02:11:38,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 177 states have (on average 1.4802259887005649) internal successors, (262), 177 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:38,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 262 transitions. [2024-11-10 02:11:38,706 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 262 transitions. Word has length 70 [2024-11-10 02:11:38,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:11:38,706 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 262 transitions. [2024-11-10 02:11:38,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:38,707 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 262 transitions. [2024-11-10 02:11:38,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-10 02:11:38,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:11:38,710 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:11:38,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 02:11:38,711 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:11:38,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:11:38,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1208069492, now seen corresponding path program 1 times [2024-11-10 02:11:38,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:11:38,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941917995] [2024-11-10 02:11:38,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:11:38,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:11:38,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:11:39,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:11:39,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:11:39,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941917995] [2024-11-10 02:11:39,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941917995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:11:39,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:11:39,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 02:11:39,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730954383] [2024-11-10 02:11:39,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:11:39,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 02:11:39,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:11:39,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 02:11:39,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 02:11:39,111 INFO L87 Difference]: Start difference. First operand 178 states and 262 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:39,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:11:39,705 INFO L93 Difference]: Finished difference Result 662 states and 977 transitions. [2024-11-10 02:11:39,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 02:11:39,706 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-10 02:11:39,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:11:39,708 INFO L225 Difference]: With dead ends: 662 [2024-11-10 02:11:39,709 INFO L226 Difference]: Without dead ends: 322 [2024-11-10 02:11:39,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 02:11:39,717 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 1190 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 02:11:39,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1190 Valid, 739 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 02:11:39,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-10 02:11:39,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 216. [2024-11-10 02:11:39,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 215 states have (on average 1.4790697674418605) internal successors, (318), 215 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:39,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 318 transitions. [2024-11-10 02:11:39,746 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 318 transitions. Word has length 71 [2024-11-10 02:11:39,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:11:39,747 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 318 transitions. [2024-11-10 02:11:39,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:39,747 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 318 transitions. [2024-11-10 02:11:39,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-10 02:11:39,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:11:39,750 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:11:39,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 02:11:39,750 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:11:39,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:11:39,751 INFO L85 PathProgramCache]: Analyzing trace with hash -695314869, now seen corresponding path program 1 times [2024-11-10 02:11:39,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:11:39,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294559670] [2024-11-10 02:11:39,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:11:39,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:11:39,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:11:40,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:11:40,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:11:40,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294559670] [2024-11-10 02:11:40,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294559670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:11:40,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:11:40,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 02:11:40,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392204999] [2024-11-10 02:11:40,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:11:40,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 02:11:40,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:11:40,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 02:11:40,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 02:11:40,065 INFO L87 Difference]: Start difference. First operand 216 states and 318 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:40,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:11:40,466 INFO L93 Difference]: Finished difference Result 498 states and 732 transitions. [2024-11-10 02:11:40,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 02:11:40,467 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-10 02:11:40,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:11:40,471 INFO L225 Difference]: With dead ends: 498 [2024-11-10 02:11:40,471 INFO L226 Difference]: Without dead ends: 346 [2024-11-10 02:11:40,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-10 02:11:40,473 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 812 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 02:11:40,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 540 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 02:11:40,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-10 02:11:40,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 248. [2024-11-10 02:11:40,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 247 states have (on average 1.4777327935222673) internal successors, (365), 247 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:40,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 365 transitions. [2024-11-10 02:11:40,500 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 365 transitions. Word has length 72 [2024-11-10 02:11:40,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:11:40,500 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 365 transitions. [2024-11-10 02:11:40,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:40,501 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 365 transitions. [2024-11-10 02:11:40,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-10 02:11:40,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:11:40,503 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:11:40,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 02:11:40,504 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:11:40,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:11:40,504 INFO L85 PathProgramCache]: Analyzing trace with hash 894628420, now seen corresponding path program 1 times [2024-11-10 02:11:40,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:11:40,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015262140] [2024-11-10 02:11:40,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:11:40,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:11:40,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:11:40,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:11:40,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:11:40,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015262140] [2024-11-10 02:11:40,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015262140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:11:40,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:11:40,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 02:11:40,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886736395] [2024-11-10 02:11:40,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:11:40,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 02:11:40,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:11:40,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 02:11:40,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 02:11:40,819 INFO L87 Difference]: Start difference. First operand 248 states and 365 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:41,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:11:41,270 INFO L93 Difference]: Finished difference Result 498 states and 731 transitions. [2024-11-10 02:11:41,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 02:11:41,271 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-10 02:11:41,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:11:41,272 INFO L225 Difference]: With dead ends: 498 [2024-11-10 02:11:41,273 INFO L226 Difference]: Without dead ends: 346 [2024-11-10 02:11:41,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-10 02:11:41,277 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 641 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 02:11:41,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 639 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 02:11:41,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-10 02:11:41,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 264. [2024-11-10 02:11:41,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 263 states have (on average 1.4752851711026616) internal successors, (388), 263 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:41,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 388 transitions. [2024-11-10 02:11:41,298 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 388 transitions. Word has length 73 [2024-11-10 02:11:41,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:11:41,298 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 388 transitions. [2024-11-10 02:11:41,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:41,298 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 388 transitions. [2024-11-10 02:11:41,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-10 02:11:41,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:11:41,299 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:11:41,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 02:11:41,300 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:11:41,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:11:41,300 INFO L85 PathProgramCache]: Analyzing trace with hash 667675479, now seen corresponding path program 1 times [2024-11-10 02:11:41,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:11:41,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330020154] [2024-11-10 02:11:41,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:11:41,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:11:41,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:11:41,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:11:41,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:11:41,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330020154] [2024-11-10 02:11:41,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330020154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:11:41,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:11:41,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 02:11:41,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382195437] [2024-11-10 02:11:41,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:11:41,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 02:11:41,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:11:41,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 02:11:41,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:11:41,572 INFO L87 Difference]: Start difference. First operand 264 states and 388 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:41,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:11:41,665 INFO L93 Difference]: Finished difference Result 418 states and 615 transitions. [2024-11-10 02:11:41,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 02:11:41,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-10 02:11:41,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:11:41,669 INFO L225 Difference]: With dead ends: 418 [2024-11-10 02:11:41,669 INFO L226 Difference]: Without dead ends: 266 [2024-11-10 02:11:41,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 02:11:41,670 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 0 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 02:11:41,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 640 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 02:11:41,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-11-10 02:11:41,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2024-11-10 02:11:41,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.471698113207547) internal successors, (390), 265 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:41,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 390 transitions. [2024-11-10 02:11:41,687 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 390 transitions. Word has length 74 [2024-11-10 02:11:41,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:11:41,687 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 390 transitions. [2024-11-10 02:11:41,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:41,688 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 390 transitions. [2024-11-10 02:11:41,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-10 02:11:41,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:11:41,690 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:11:41,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 02:11:41,690 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:11:41,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:11:41,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1029653003, now seen corresponding path program 1 times [2024-11-10 02:11:41,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:11:41,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278804321] [2024-11-10 02:11:41,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:11:41,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:11:41,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:11:42,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:11:42,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:11:42,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278804321] [2024-11-10 02:11:42,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278804321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:11:42,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:11:42,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 02:11:42,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348352490] [2024-11-10 02:11:42,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:11:42,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 02:11:42,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:11:42,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 02:11:42,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 02:11:42,341 INFO L87 Difference]: Start difference. First operand 266 states and 390 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:42,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:11:42,528 INFO L93 Difference]: Finished difference Result 425 states and 624 transitions. [2024-11-10 02:11:42,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 02:11:42,528 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-10 02:11:42,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:11:42,531 INFO L225 Difference]: With dead ends: 425 [2024-11-10 02:11:42,531 INFO L226 Difference]: Without dead ends: 271 [2024-11-10 02:11:42,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 02:11:42,534 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 1 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1255 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 02:11:42,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1255 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 02:11:42,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-10 02:11:42,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2024-11-10 02:11:42,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 270 states have (on average 1.4666666666666666) internal successors, (396), 270 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:42,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 396 transitions. [2024-11-10 02:11:42,549 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 396 transitions. Word has length 75 [2024-11-10 02:11:42,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:11:42,549 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 396 transitions. [2024-11-10 02:11:42,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:42,553 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 396 transitions. [2024-11-10 02:11:42,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-10 02:11:42,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:11:42,554 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:11:42,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 02:11:42,554 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:11:42,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:11:42,555 INFO L85 PathProgramCache]: Analyzing trace with hash 850190738, now seen corresponding path program 1 times [2024-11-10 02:11:42,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:11:42,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817606175] [2024-11-10 02:11:42,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:11:42,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:11:42,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:11:42,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:11:42,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:11:42,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817606175] [2024-11-10 02:11:42,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817606175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:11:42,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:11:42,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 02:11:42,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422016520] [2024-11-10 02:11:42,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:11:42,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 02:11:42,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:11:42,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 02:11:42,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 02:11:42,913 INFO L87 Difference]: Start difference. First operand 271 states and 396 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:43,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:11:43,103 INFO L93 Difference]: Finished difference Result 465 states and 679 transitions. [2024-11-10 02:11:43,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 02:11:43,104 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-10 02:11:43,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:11:43,105 INFO L225 Difference]: With dead ends: 465 [2024-11-10 02:11:43,105 INFO L226 Difference]: Without dead ends: 299 [2024-11-10 02:11:43,106 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 02:11:43,106 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 12 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 02:11:43,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1253 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 02:11:43,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-10 02:11:43,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2024-11-10 02:11:43,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 298 states have (on average 1.4563758389261745) internal successors, (434), 298 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:43,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 434 transitions. [2024-11-10 02:11:43,119 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 434 transitions. Word has length 76 [2024-11-10 02:11:43,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:11:43,119 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 434 transitions. [2024-11-10 02:11:43,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:43,120 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 434 transitions. [2024-11-10 02:11:43,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-10 02:11:43,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:11:43,120 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:11:43,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 02:11:43,121 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:11:43,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:11:43,122 INFO L85 PathProgramCache]: Analyzing trace with hash -338374323, now seen corresponding path program 1 times [2024-11-10 02:11:43,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:11:43,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838137755] [2024-11-10 02:11:43,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:11:43,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:11:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:11:43,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:11:43,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:11:43,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838137755] [2024-11-10 02:11:43,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838137755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:11:43,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:11:43,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 02:11:43,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873296702] [2024-11-10 02:11:43,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:11:43,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 02:11:43,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:11:43,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 02:11:43,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 02:11:43,814 INFO L87 Difference]: Start difference. First operand 299 states and 434 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:44,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:11:44,022 INFO L93 Difference]: Finished difference Result 493 states and 714 transitions. [2024-11-10 02:11:44,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 02:11:44,022 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-10 02:11:44,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:11:44,024 INFO L225 Difference]: With dead ends: 493 [2024-11-10 02:11:44,024 INFO L226 Difference]: Without dead ends: 315 [2024-11-10 02:11:44,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-10 02:11:44,025 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 213 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 02:11:44,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 1011 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 02:11:44,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-10 02:11:44,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2024-11-10 02:11:44,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 314 states have (on average 1.4458598726114649) internal successors, (454), 314 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:44,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 454 transitions. [2024-11-10 02:11:44,035 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 454 transitions. Word has length 76 [2024-11-10 02:11:44,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:11:44,036 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 454 transitions. [2024-11-10 02:11:44,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:44,036 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 454 transitions. [2024-11-10 02:11:44,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-10 02:11:44,037 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:11:44,037 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:11:44,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 02:11:44,038 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:11:44,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:11:44,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1738139605, now seen corresponding path program 1 times [2024-11-10 02:11:44,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:11:44,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377439653] [2024-11-10 02:11:44,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:11:44,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:11:44,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:11:44,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:11:44,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:11:44,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377439653] [2024-11-10 02:11:44,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377439653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:11:44,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:11:44,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 02:11:44,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823510530] [2024-11-10 02:11:44,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:11:44,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 02:11:44,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:11:44,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 02:11:44,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 02:11:44,341 INFO L87 Difference]: Start difference. First operand 315 states and 454 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:44,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:11:44,518 INFO L93 Difference]: Finished difference Result 579 states and 833 transitions. [2024-11-10 02:11:44,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 02:11:44,519 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-10 02:11:44,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:11:44,520 INFO L225 Difference]: With dead ends: 579 [2024-11-10 02:11:44,520 INFO L226 Difference]: Without dead ends: 353 [2024-11-10 02:11:44,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 02:11:44,521 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 12 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 02:11:44,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1253 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 02:11:44,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-11-10 02:11:44,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2024-11-10 02:11:44,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 352 states have (on average 1.4346590909090908) internal successors, (505), 352 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:44,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 505 transitions. [2024-11-10 02:11:44,529 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 505 transitions. Word has length 77 [2024-11-10 02:11:44,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:11:44,530 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 505 transitions. [2024-11-10 02:11:44,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:44,530 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 505 transitions. [2024-11-10 02:11:44,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-10 02:11:44,531 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:11:44,531 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:11:44,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 02:11:44,532 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:11:44,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:11:44,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1291571925, now seen corresponding path program 1 times [2024-11-10 02:11:44,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:11:44,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702390101] [2024-11-10 02:11:44,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:11:44,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:11:44,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:11:44,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:11:44,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:11:44,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702390101] [2024-11-10 02:11:44,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702390101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:11:44,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:11:44,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 02:11:44,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385503262] [2024-11-10 02:11:44,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:11:44,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 02:11:44,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:11:44,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 02:11:44,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 02:11:44,764 INFO L87 Difference]: Start difference. First operand 353 states and 505 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:44,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:11:44,926 INFO L93 Difference]: Finished difference Result 619 states and 881 transitions. [2024-11-10 02:11:44,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 02:11:44,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-10 02:11:44,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:11:44,928 INFO L225 Difference]: With dead ends: 619 [2024-11-10 02:11:44,928 INFO L226 Difference]: Without dead ends: 402 [2024-11-10 02:11:44,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 02:11:44,929 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 574 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 02:11:44,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [574 Valid, 622 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 02:11:44,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2024-11-10 02:11:44,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 345. [2024-11-10 02:11:44,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 344 states have (on average 1.433139534883721) internal successors, (493), 344 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:44,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 493 transitions. [2024-11-10 02:11:44,937 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 493 transitions. Word has length 77 [2024-11-10 02:11:44,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:11:44,938 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 493 transitions. [2024-11-10 02:11:44,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:44,938 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 493 transitions. [2024-11-10 02:11:44,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-10 02:11:44,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:11:44,939 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:11:44,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 02:11:44,939 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:11:44,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:11:44,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1643227600, now seen corresponding path program 1 times [2024-11-10 02:11:44,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:11:44,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110291192] [2024-11-10 02:11:44,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:11:44,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:11:45,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:11:45,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:11:45,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:11:45,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110291192] [2024-11-10 02:11:45,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110291192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:11:45,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:11:45,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 02:11:45,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175979609] [2024-11-10 02:11:45,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:11:45,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 02:11:45,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:11:45,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 02:11:45,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 02:11:45,431 INFO L87 Difference]: Start difference. First operand 345 states and 493 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:45,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:11:45,644 INFO L93 Difference]: Finished difference Result 592 states and 845 transitions. [2024-11-10 02:11:45,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 02:11:45,644 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-10 02:11:45,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:11:45,646 INFO L225 Difference]: With dead ends: 592 [2024-11-10 02:11:45,646 INFO L226 Difference]: Without dead ends: 369 [2024-11-10 02:11:45,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-10 02:11:45,647 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 222 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 02:11:45,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 1011 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 02:11:45,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-11-10 02:11:45,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 369. [2024-11-10 02:11:45,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 368 states have (on average 1.421195652173913) internal successors, (523), 368 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:45,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 523 transitions. [2024-11-10 02:11:45,655 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 523 transitions. Word has length 77 [2024-11-10 02:11:45,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:11:45,655 INFO L471 AbstractCegarLoop]: Abstraction has 369 states and 523 transitions. [2024-11-10 02:11:45,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:45,655 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 523 transitions. [2024-11-10 02:11:45,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-10 02:11:45,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:11:45,656 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:11:45,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 02:11:45,657 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:11:45,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:11:45,657 INFO L85 PathProgramCache]: Analyzing trace with hash 597251181, now seen corresponding path program 1 times [2024-11-10 02:11:45,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:11:45,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127222371] [2024-11-10 02:11:45,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:11:45,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:11:45,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:11:46,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:11:46,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:11:46,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127222371] [2024-11-10 02:11:46,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127222371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:11:46,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:11:46,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 02:11:46,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556776389] [2024-11-10 02:11:46,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:11:46,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 02:11:46,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:11:46,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 02:11:46,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 02:11:46,147 INFO L87 Difference]: Start difference. First operand 369 states and 523 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:46,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:11:46,356 INFO L93 Difference]: Finished difference Result 641 states and 908 transitions. [2024-11-10 02:11:46,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 02:11:46,357 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-10 02:11:46,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:11:46,359 INFO L225 Difference]: With dead ends: 641 [2024-11-10 02:11:46,359 INFO L226 Difference]: Without dead ends: 381 [2024-11-10 02:11:46,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-10 02:11:46,360 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 231 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 02:11:46,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 1011 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 02:11:46,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-10 02:11:46,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2024-11-10 02:11:46,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 380 states have (on average 1.418421052631579) internal successors, (539), 380 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:46,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 539 transitions. [2024-11-10 02:11:46,368 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 539 transitions. Word has length 78 [2024-11-10 02:11:46,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:11:46,368 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 539 transitions. [2024-11-10 02:11:46,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:46,368 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 539 transitions. [2024-11-10 02:11:46,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-10 02:11:46,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:11:46,369 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:11:46,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 02:11:46,370 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:11:46,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:11:46,370 INFO L85 PathProgramCache]: Analyzing trace with hash -751060174, now seen corresponding path program 1 times [2024-11-10 02:11:46,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:11:46,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624128619] [2024-11-10 02:11:46,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:11:46,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:11:46,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:11:46,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:11:46,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:11:46,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624128619] [2024-11-10 02:11:46,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624128619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:11:46,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:11:46,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 02:11:46,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334145545] [2024-11-10 02:11:46,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:11:46,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 02:11:46,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:11:46,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 02:11:46,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 02:11:46,569 INFO L87 Difference]: Start difference. First operand 381 states and 539 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:46,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:11:46,734 INFO L93 Difference]: Finished difference Result 670 states and 941 transitions. [2024-11-10 02:11:46,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 02:11:46,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-10 02:11:46,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:11:46,737 INFO L225 Difference]: With dead ends: 670 [2024-11-10 02:11:46,737 INFO L226 Difference]: Without dead ends: 404 [2024-11-10 02:11:46,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 02:11:46,738 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 539 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 02:11:46,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 622 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 02:11:46,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-11-10 02:11:46,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 355. [2024-11-10 02:11:46,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 354 states have (on average 1.4152542372881356) internal successors, (501), 354 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:46,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 501 transitions. [2024-11-10 02:11:46,748 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 501 transitions. Word has length 78 [2024-11-10 02:11:46,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:11:46,748 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 501 transitions. [2024-11-10 02:11:46,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:46,748 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 501 transitions. [2024-11-10 02:11:46,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-10 02:11:46,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:11:46,749 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:11:46,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 02:11:46,749 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:11:46,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:11:46,750 INFO L85 PathProgramCache]: Analyzing trace with hash -2096918478, now seen corresponding path program 1 times [2024-11-10 02:11:46,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:11:46,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693270357] [2024-11-10 02:11:46,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:11:46,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:11:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:11:47,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:11:47,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:11:47,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693270357] [2024-11-10 02:11:47,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693270357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:11:47,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:11:47,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 02:11:47,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550057484] [2024-11-10 02:11:47,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:11:47,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 02:11:47,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:11:47,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 02:11:47,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 02:11:47,020 INFO L87 Difference]: Start difference. First operand 355 states and 501 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:47,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:11:47,203 INFO L93 Difference]: Finished difference Result 687 states and 968 transitions. [2024-11-10 02:11:47,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 02:11:47,207 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-10 02:11:47,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:11:47,209 INFO L225 Difference]: With dead ends: 687 [2024-11-10 02:11:47,209 INFO L226 Difference]: Without dead ends: 405 [2024-11-10 02:11:47,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 02:11:47,210 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 13 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 02:11:47,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1253 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 02:11:47,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-11-10 02:11:47,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2024-11-10 02:11:47,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 404 states have (on average 1.4084158415841583) internal successors, (569), 404 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:47,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 569 transitions. [2024-11-10 02:11:47,220 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 569 transitions. Word has length 78 [2024-11-10 02:11:47,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:11:47,221 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 569 transitions. [2024-11-10 02:11:47,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:47,221 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 569 transitions. [2024-11-10 02:11:47,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-10 02:11:47,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:11:47,222 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:11:47,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 02:11:47,222 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:11:47,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:11:47,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1424445089, now seen corresponding path program 1 times [2024-11-10 02:11:47,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:11:47,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511523418] [2024-11-10 02:11:47,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:11:47,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:11:47,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:11:47,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:11:47,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:11:47,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511523418] [2024-11-10 02:11:47,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511523418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:11:47,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:11:47,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 02:11:47,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012868054] [2024-11-10 02:11:47,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:11:47,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 02:11:47,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:11:47,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 02:11:47,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 02:11:47,431 INFO L87 Difference]: Start difference. First operand 405 states and 569 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:47,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:11:47,591 INFO L93 Difference]: Finished difference Result 740 states and 1029 transitions. [2024-11-10 02:11:47,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 02:11:47,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-10 02:11:47,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:11:47,594 INFO L225 Difference]: With dead ends: 740 [2024-11-10 02:11:47,594 INFO L226 Difference]: Without dead ends: 428 [2024-11-10 02:11:47,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 02:11:47,596 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 527 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 02:11:47,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 622 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 02:11:47,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-11-10 02:11:47,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 379. [2024-11-10 02:11:47,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 378 states have (on average 1.3994708994708995) internal successors, (529), 378 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:47,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 529 transitions. [2024-11-10 02:11:47,622 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 529 transitions. Word has length 79 [2024-11-10 02:11:47,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:11:47,623 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 529 transitions. [2024-11-10 02:11:47,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:47,623 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 529 transitions. [2024-11-10 02:11:47,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-10 02:11:47,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:11:47,624 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:11:47,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 02:11:47,624 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:11:47,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:11:47,625 INFO L85 PathProgramCache]: Analyzing trace with hash -544341879, now seen corresponding path program 1 times [2024-11-10 02:11:47,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:11:47,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089913658] [2024-11-10 02:11:47,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:11:47,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:11:47,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:11:47,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:11:47,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:11:47,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089913658] [2024-11-10 02:11:47,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089913658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:11:47,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:11:47,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 02:11:47,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756556904] [2024-11-10 02:11:47,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:11:47,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 02:11:47,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:11:47,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 02:11:47,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 02:11:47,866 INFO L87 Difference]: Start difference. First operand 379 states and 529 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:48,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:11:48,045 INFO L93 Difference]: Finished difference Result 739 states and 1030 transitions. [2024-11-10 02:11:48,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 02:11:48,045 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-10 02:11:48,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:11:48,047 INFO L225 Difference]: With dead ends: 739 [2024-11-10 02:11:48,048 INFO L226 Difference]: Without dead ends: 417 [2024-11-10 02:11:48,049 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 02:11:48,049 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 12 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 02:11:48,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1253 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 02:11:48,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-10 02:11:48,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 417. [2024-11-10 02:11:48,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 416 states have (on average 1.3942307692307692) internal successors, (580), 416 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:48,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 580 transitions. [2024-11-10 02:11:48,058 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 580 transitions. Word has length 79 [2024-11-10 02:11:48,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:11:48,059 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 580 transitions. [2024-11-10 02:11:48,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:48,059 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 580 transitions. [2024-11-10 02:11:48,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-10 02:11:48,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:11:48,060 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:11:48,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 02:11:48,060 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:11:48,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:11:48,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1641951570, now seen corresponding path program 1 times [2024-11-10 02:11:48,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:11:48,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278121528] [2024-11-10 02:11:48,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:11:48,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:11:48,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:11:48,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:11:48,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:11:48,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278121528] [2024-11-10 02:11:48,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278121528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:11:48,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:11:48,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 02:11:48,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62482026] [2024-11-10 02:11:48,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:11:48,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 02:11:48,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:11:48,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 02:11:48,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 02:11:48,528 INFO L87 Difference]: Start difference. First operand 417 states and 580 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:48,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:11:48,733 INFO L93 Difference]: Finished difference Result 762 states and 1058 transitions. [2024-11-10 02:11:48,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 02:11:48,734 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-10 02:11:48,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:11:48,736 INFO L225 Difference]: With dead ends: 762 [2024-11-10 02:11:48,736 INFO L226 Difference]: Without dead ends: 441 [2024-11-10 02:11:48,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-10 02:11:48,737 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 239 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 02:11:48,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 1010 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 02:11:48,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-10 02:11:48,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2024-11-10 02:11:48,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 440 states have (on average 1.3863636363636365) internal successors, (610), 440 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:48,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 610 transitions. [2024-11-10 02:11:48,747 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 610 transitions. Word has length 79 [2024-11-10 02:11:48,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:11:48,747 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 610 transitions. [2024-11-10 02:11:48,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:48,747 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 610 transitions. [2024-11-10 02:11:48,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-10 02:11:48,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:11:48,749 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:11:48,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 02:11:48,749 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:11:48,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:11:48,750 INFO L85 PathProgramCache]: Analyzing trace with hash 42699986, now seen corresponding path program 1 times [2024-11-10 02:11:48,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:11:48,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653216718] [2024-11-10 02:11:48,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:11:48,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:11:48,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:11:48,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:11:48,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:11:48,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653216718] [2024-11-10 02:11:48,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653216718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:11:48,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:11:48,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 02:11:48,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114802376] [2024-11-10 02:11:48,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:11:48,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 02:11:48,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:11:48,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 02:11:48,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 02:11:48,922 INFO L87 Difference]: Start difference. First operand 441 states and 610 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:49,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:11:49,033 INFO L93 Difference]: Finished difference Result 834 states and 1154 transitions. [2024-11-10 02:11:49,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 02:11:49,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-10 02:11:49,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:11:49,036 INFO L225 Difference]: With dead ends: 834 [2024-11-10 02:11:49,036 INFO L226 Difference]: Without dead ends: 473 [2024-11-10 02:11:49,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 02:11:49,037 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 12 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 02:11:49,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 851 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 02:11:49,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-11-10 02:11:49,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2024-11-10 02:11:49,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 472 states have (on average 1.3855932203389831) internal successors, (654), 472 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:49,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 654 transitions. [2024-11-10 02:11:49,061 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 654 transitions. Word has length 80 [2024-11-10 02:11:49,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:11:49,061 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 654 transitions. [2024-11-10 02:11:49,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:49,061 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 654 transitions. [2024-11-10 02:11:49,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-10 02:11:49,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:11:49,062 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:11:49,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 02:11:49,063 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:11:49,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:11:49,063 INFO L85 PathProgramCache]: Analyzing trace with hash -967474734, now seen corresponding path program 1 times [2024-11-10 02:11:49,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:11:49,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225446129] [2024-11-10 02:11:49,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:11:49,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:11:49,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:11:49,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:11:49,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:11:49,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225446129] [2024-11-10 02:11:49,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225446129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:11:49,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:11:49,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 02:11:49,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332523644] [2024-11-10 02:11:49,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:11:49,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 02:11:49,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:11:49,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 02:11:49,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 02:11:49,306 INFO L87 Difference]: Start difference. First operand 473 states and 654 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:49,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:11:49,449 INFO L93 Difference]: Finished difference Result 868 states and 1192 transitions. [2024-11-10 02:11:49,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 02:11:49,449 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-10 02:11:49,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:11:49,451 INFO L225 Difference]: With dead ends: 868 [2024-11-10 02:11:49,451 INFO L226 Difference]: Without dead ends: 488 [2024-11-10 02:11:49,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 02:11:49,452 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 492 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 02:11:49,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 622 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 02:11:49,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-11-10 02:11:49,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 447. [2024-11-10 02:11:49,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 446 states have (on average 1.3811659192825112) internal successors, (616), 446 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:49,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 616 transitions. [2024-11-10 02:11:49,462 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 616 transitions. Word has length 80 [2024-11-10 02:11:49,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:11:49,462 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 616 transitions. [2024-11-10 02:11:49,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:49,462 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 616 transitions. [2024-11-10 02:11:49,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-10 02:11:49,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:11:49,463 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:11:49,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 02:11:49,464 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:11:49,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:11:49,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1917038775, now seen corresponding path program 1 times [2024-11-10 02:11:49,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:11:49,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933382412] [2024-11-10 02:11:49,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:11:49,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:11:49,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:11:49,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:11:49,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:11:49,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933382412] [2024-11-10 02:11:49,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933382412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:11:49,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:11:49,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 02:11:49,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756754315] [2024-11-10 02:11:49,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:11:49,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 02:11:49,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:11:49,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 02:11:49,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 02:11:49,834 INFO L87 Difference]: Start difference. First operand 447 states and 616 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:49,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:11:49,998 INFO L93 Difference]: Finished difference Result 841 states and 1159 transitions. [2024-11-10 02:11:49,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 02:11:49,998 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-10 02:11:49,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:11:50,000 INFO L225 Difference]: With dead ends: 841 [2024-11-10 02:11:50,000 INFO L226 Difference]: Without dead ends: 471 [2024-11-10 02:11:50,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-10 02:11:50,002 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 248 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 02:11:50,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 811 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 02:11:50,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2024-11-10 02:11:50,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 471. [2024-11-10 02:11:50,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 470 states have (on average 1.3787234042553191) internal successors, (648), 470 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:50,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 648 transitions. [2024-11-10 02:11:50,011 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 648 transitions. Word has length 80 [2024-11-10 02:11:50,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:11:50,012 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 648 transitions. [2024-11-10 02:11:50,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:50,013 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 648 transitions. [2024-11-10 02:11:50,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-10 02:11:50,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:11:50,014 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:11:50,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-10 02:11:50,014 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:11:50,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:11:50,014 INFO L85 PathProgramCache]: Analyzing trace with hash 916986901, now seen corresponding path program 1 times [2024-11-10 02:11:50,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:11:50,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839210413] [2024-11-10 02:11:50,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:11:50,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:11:50,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:11:50,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:11:50,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:11:50,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839210413] [2024-11-10 02:11:50,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839210413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:11:50,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:11:50,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 02:11:50,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857633760] [2024-11-10 02:11:50,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:11:50,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 02:11:50,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:11:50,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 02:11:50,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 02:11:50,351 INFO L87 Difference]: Start difference. First operand 471 states and 648 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:50,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:11:50,519 INFO L93 Difference]: Finished difference Result 892 states and 1225 transitions. [2024-11-10 02:11:50,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 02:11:50,519 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-10 02:11:50,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:11:50,521 INFO L225 Difference]: With dead ends: 892 [2024-11-10 02:11:50,521 INFO L226 Difference]: Without dead ends: 483 [2024-11-10 02:11:50,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-10 02:11:50,523 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 254 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 02:11:50,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 811 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 02:11:50,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-11-10 02:11:50,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2024-11-10 02:11:50,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 482 states have (on average 1.3775933609958506) internal successors, (664), 482 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:50,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 664 transitions. [2024-11-10 02:11:50,531 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 664 transitions. Word has length 81 [2024-11-10 02:11:50,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:11:50,532 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 664 transitions. [2024-11-10 02:11:50,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:50,532 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 664 transitions. [2024-11-10 02:11:50,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-10 02:11:50,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:11:50,533 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:11:50,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-10 02:11:50,533 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:11:50,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:11:50,534 INFO L85 PathProgramCache]: Analyzing trace with hash -7823489, now seen corresponding path program 1 times [2024-11-10 02:11:50,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:11:50,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373965378] [2024-11-10 02:11:50,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:11:50,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:11:50,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:11:50,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:11:50,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:11:50,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373965378] [2024-11-10 02:11:50,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373965378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:11:50,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:11:50,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 02:11:50,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167729618] [2024-11-10 02:11:50,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:11:50,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 02:11:50,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:11:50,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 02:11:50,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 02:11:50,738 INFO L87 Difference]: Start difference. First operand 483 states and 664 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:50,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:11:50,877 INFO L93 Difference]: Finished difference Result 917 states and 1250 transitions. [2024-11-10 02:11:50,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 02:11:50,878 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-10 02:11:50,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:11:50,880 INFO L225 Difference]: With dead ends: 917 [2024-11-10 02:11:50,880 INFO L226 Difference]: Without dead ends: 498 [2024-11-10 02:11:50,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 02:11:50,881 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 480 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 02:11:50,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 622 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 02:11:50,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2024-11-10 02:11:50,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 457. [2024-11-10 02:11:50,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 456 states have (on average 1.368421052631579) internal successors, (624), 456 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:50,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 624 transitions. [2024-11-10 02:11:50,890 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 624 transitions. Word has length 81 [2024-11-10 02:11:50,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:11:50,890 INFO L471 AbstractCegarLoop]: Abstraction has 457 states and 624 transitions. [2024-11-10 02:11:50,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:50,891 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 624 transitions. [2024-11-10 02:11:50,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-10 02:11:50,891 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:11:50,892 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:11:50,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-10 02:11:50,892 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:11:50,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:11:50,892 INFO L85 PathProgramCache]: Analyzing trace with hash 95040316, now seen corresponding path program 1 times [2024-11-10 02:11:50,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:11:50,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772761843] [2024-11-10 02:11:50,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:11:50,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:11:50,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:11:51,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:11:51,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:11:51,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772761843] [2024-11-10 02:11:51,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772761843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:11:51,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 02:11:51,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 02:11:51,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935074403] [2024-11-10 02:11:51,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:11:51,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 02:11:51,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:11:51,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 02:11:51,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 02:11:51,071 INFO L87 Difference]: Start difference. First operand 457 states and 624 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:51,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:11:51,209 INFO L93 Difference]: Finished difference Result 839 states and 1146 transitions. [2024-11-10 02:11:51,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 02:11:51,210 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-10 02:11:51,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:11:51,211 INFO L225 Difference]: With dead ends: 839 [2024-11-10 02:11:51,211 INFO L226 Difference]: Without dead ends: 420 [2024-11-10 02:11:51,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 02:11:51,213 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 428 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 02:11:51,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 622 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 02:11:51,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-11-10 02:11:51,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 399. [2024-11-10 02:11:51,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 398 states have (on average 1.3819095477386936) internal successors, (550), 398 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:51,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 550 transitions. [2024-11-10 02:11:51,221 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 550 transitions. Word has length 82 [2024-11-10 02:11:51,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:11:51,222 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 550 transitions. [2024-11-10 02:11:51,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:11:51,222 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 550 transitions. [2024-11-10 02:11:51,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-10 02:11:51,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:11:51,224 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:11:51,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-10 02:11:51,224 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:11:51,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:11:51,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1311955261, now seen corresponding path program 1 times [2024-11-10 02:11:51,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:11:51,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918729063] [2024-11-10 02:11:51,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:11:51,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:11:51,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:11:53,073 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 14 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:11:53,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:11:53,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918729063] [2024-11-10 02:11:53,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918729063] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 02:11:53,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338222257] [2024-11-10 02:11:53,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:11:53,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:11:53,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 02:11:53,076 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) [2024-11-10 02:11:53,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 02:11:53,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:11:53,664 INFO L255 TraceCheckSpWp]: Trace formula consists of 1189 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-11-10 02:11:53,676 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 02:11:54,742 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-10 02:11:54,742 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 02:11:56,129 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 25 proven. 7 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-10 02:11:56,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338222257] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 02:11:56,131 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 02:11:56,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 13] total 31 [2024-11-10 02:11:56,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141666212] [2024-11-10 02:11:56,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 02:11:56,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-10 02:11:56,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:11:56,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-10 02:11:56,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=812, Unknown=0, NotChecked=0, Total=930 [2024-11-10 02:11:56,134 INFO L87 Difference]: Start difference. First operand 399 states and 550 transitions. Second operand has 31 states, 31 states have (on average 12.64516129032258) internal successors, (392), 31 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:00,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:12:00,104 INFO L93 Difference]: Finished difference Result 1697 states and 2342 transitions. [2024-11-10 02:12:00,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2024-11-10 02:12:00,104 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 12.64516129032258) internal successors, (392), 31 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2024-11-10 02:12:00,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:12:00,109 INFO L225 Difference]: With dead ends: 1697 [2024-11-10 02:12:00,109 INFO L226 Difference]: Without dead ends: 1380 [2024-11-10 02:12:00,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2248 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1015, Invalid=7915, Unknown=0, NotChecked=0, Total=8930 [2024-11-10 02:12:00,114 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 3242 mSDsluCounter, 2431 mSDsCounter, 0 mSdLazyCounter, 4443 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3242 SdHoareTripleChecker+Valid, 2573 SdHoareTripleChecker+Invalid, 4467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 4443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-10 02:12:00,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3242 Valid, 2573 Invalid, 4467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 4443 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-10 02:12:00,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2024-11-10 02:12:00,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 569. [2024-11-10 02:12:00,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 568 states have (on average 1.3838028169014085) internal successors, (786), 568 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:00,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 786 transitions. [2024-11-10 02:12:00,134 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 786 transitions. Word has length 152 [2024-11-10 02:12:00,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:12:00,134 INFO L471 AbstractCegarLoop]: Abstraction has 569 states and 786 transitions. [2024-11-10 02:12:00,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 12.64516129032258) internal successors, (392), 31 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:00,135 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 786 transitions. [2024-11-10 02:12:00,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-10 02:12:00,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:12:00,137 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:12:00,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-10 02:12:00,337 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,SelfDestructingSolverStorable23 [2024-11-10 02:12:00,339 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:12:00,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:12:00,340 INFO L85 PathProgramCache]: Analyzing trace with hash -694068278, now seen corresponding path program 1 times [2024-11-10 02:12:00,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:12:00,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123037228] [2024-11-10 02:12:00,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:12:00,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:12:01,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:12:02,168 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 22 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:12:02,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:12:02,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123037228] [2024-11-10 02:12:02,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123037228] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 02:12:02,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606743001] [2024-11-10 02:12:02,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:12:02,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:12:02,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 02:12:02,171 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) [2024-11-10 02:12:02,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 02:12:02,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:12:02,730 INFO L255 TraceCheckSpWp]: Trace formula consists of 1192 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-10 02:12:02,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 02:12:03,205 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 20 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:12:03,205 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 02:12:03,454 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 40 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:12:03,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606743001] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 02:12:03,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 02:12:03,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 6] total 20 [2024-11-10 02:12:03,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767046843] [2024-11-10 02:12:03,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 02:12:03,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-10 02:12:03,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:12:03,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-10 02:12:03,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-11-10 02:12:03,457 INFO L87 Difference]: Start difference. First operand 569 states and 786 transitions. Second operand has 20 states, 20 states have (on average 19.55) internal successors, (391), 20 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:05,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:12:05,395 INFO L93 Difference]: Finished difference Result 3661 states and 5018 transitions. [2024-11-10 02:12:05,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-10 02:12:05,396 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 19.55) internal successors, (391), 20 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2024-11-10 02:12:05,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:12:05,407 INFO L225 Difference]: With dead ends: 3661 [2024-11-10 02:12:05,407 INFO L226 Difference]: Without dead ends: 3174 [2024-11-10 02:12:05,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 693 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=515, Invalid=2565, Unknown=0, NotChecked=0, Total=3080 [2024-11-10 02:12:05,411 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 4196 mSDsluCounter, 1823 mSDsCounter, 0 mSdLazyCounter, 2433 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4196 SdHoareTripleChecker+Valid, 1989 SdHoareTripleChecker+Invalid, 2451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-10 02:12:05,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4196 Valid, 1989 Invalid, 2451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2433 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-10 02:12:05,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3174 states. [2024-11-10 02:12:05,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3174 to 1117. [2024-11-10 02:12:05,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1117 states, 1116 states have (on average 1.385304659498208) internal successors, (1546), 1116 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:05,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 1546 transitions. [2024-11-10 02:12:05,444 INFO L78 Accepts]: Start accepts. Automaton has 1117 states and 1546 transitions. Word has length 153 [2024-11-10 02:12:05,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:12:05,444 INFO L471 AbstractCegarLoop]: Abstraction has 1117 states and 1546 transitions. [2024-11-10 02:12:05,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 19.55) internal successors, (391), 20 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:05,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1117 states and 1546 transitions. [2024-11-10 02:12:05,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-10 02:12:05,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:12:05,448 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:12:05,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-10 02:12:05,648 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,SelfDestructingSolverStorable24 [2024-11-10 02:12:05,649 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:12:05,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:12:05,649 INFO L85 PathProgramCache]: Analyzing trace with hash -259135805, now seen corresponding path program 1 times [2024-11-10 02:12:05,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:12:05,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296141192] [2024-11-10 02:12:05,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:12:05,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:12:05,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:12:06,338 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 31 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:12:06,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:12:06,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296141192] [2024-11-10 02:12:06,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296141192] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 02:12:06,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605251385] [2024-11-10 02:12:06,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:12:06,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:12:06,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 02:12:06,342 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) [2024-11-10 02:12:06,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 02:12:06,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:12:06,897 INFO L255 TraceCheckSpWp]: Trace formula consists of 1195 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-10 02:12:06,901 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 02:12:07,501 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 47 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:12:07,501 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 02:12:07,925 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 31 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:12:07,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605251385] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 02:12:07,925 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 02:12:07,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 8] total 17 [2024-11-10 02:12:07,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120334217] [2024-11-10 02:12:07,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 02:12:07,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-10 02:12:07,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:12:07,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-10 02:12:07,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2024-11-10 02:12:07,929 INFO L87 Difference]: Start difference. First operand 1117 states and 1546 transitions. Second operand has 17 states, 17 states have (on average 19.58823529411765) internal successors, (333), 17 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:08,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:12:08,611 INFO L93 Difference]: Finished difference Result 2753 states and 3810 transitions. [2024-11-10 02:12:08,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 02:12:08,612 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 19.58823529411765) internal successors, (333), 17 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 154 [2024-11-10 02:12:08,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:12:08,617 INFO L225 Difference]: With dead ends: 2753 [2024-11-10 02:12:08,617 INFO L226 Difference]: Without dead ends: 1718 [2024-11-10 02:12:08,619 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 296 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2024-11-10 02:12:08,619 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 793 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-10 02:12:08,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 1189 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-10 02:12:08,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2024-11-10 02:12:08,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1653. [2024-11-10 02:12:08,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1652 states have (on average 1.37409200968523) internal successors, (2270), 1652 states have internal predecessors, (2270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:08,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2270 transitions. [2024-11-10 02:12:08,648 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2270 transitions. Word has length 154 [2024-11-10 02:12:08,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:12:08,648 INFO L471 AbstractCegarLoop]: Abstraction has 1653 states and 2270 transitions. [2024-11-10 02:12:08,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 19.58823529411765) internal successors, (333), 17 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:08,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2270 transitions. [2024-11-10 02:12:08,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-10 02:12:08,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:12:08,652 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:12:08,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 02:12:08,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:12:08,854 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:12:08,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:12:08,854 INFO L85 PathProgramCache]: Analyzing trace with hash 792215793, now seen corresponding path program 1 times [2024-11-10 02:12:08,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:12:08,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111637102] [2024-11-10 02:12:08,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:12:08,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:12:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:12:10,405 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 30 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:12:10,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:12:10,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111637102] [2024-11-10 02:12:10,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111637102] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 02:12:10,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130466672] [2024-11-10 02:12:10,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:12:10,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:12:10,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 02:12:10,407 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) [2024-11-10 02:12:10,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 02:12:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:12:11,046 INFO L255 TraceCheckSpWp]: Trace formula consists of 1195 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-10 02:12:11,051 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 02:12:11,404 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 30 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:12:11,404 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 02:12:11,734 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:12:11,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130466672] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 02:12:11,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 02:12:11,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 8] total 21 [2024-11-10 02:12:11,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457499499] [2024-11-10 02:12:11,735 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 02:12:11,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-10 02:12:11,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:12:11,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-10 02:12:11,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2024-11-10 02:12:11,738 INFO L87 Difference]: Start difference. First operand 1653 states and 2270 transitions. Second operand has 21 states, 21 states have (on average 14.142857142857142) internal successors, (297), 21 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:13,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:12:13,022 INFO L93 Difference]: Finished difference Result 5173 states and 7038 transitions. [2024-11-10 02:12:13,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-10 02:12:13,023 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 14.142857142857142) internal successors, (297), 21 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 154 [2024-11-10 02:12:13,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:12:13,035 INFO L225 Difference]: With dead ends: 5173 [2024-11-10 02:12:13,035 INFO L226 Difference]: Without dead ends: 3602 [2024-11-10 02:12:13,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 306 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=268, Invalid=992, Unknown=0, NotChecked=0, Total=1260 [2024-11-10 02:12:13,039 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 2509 mSDsluCounter, 1858 mSDsCounter, 0 mSdLazyCounter, 2369 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2509 SdHoareTripleChecker+Valid, 2035 SdHoareTripleChecker+Invalid, 2375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-10 02:12:13,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2509 Valid, 2035 Invalid, 2375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2369 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-10 02:12:13,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3602 states. [2024-11-10 02:12:13,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3602 to 1549. [2024-11-10 02:12:13,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1549 states, 1548 states have (on average 1.3630490956072352) internal successors, (2110), 1548 states have internal predecessors, (2110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:13,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1549 states to 1549 states and 2110 transitions. [2024-11-10 02:12:13,073 INFO L78 Accepts]: Start accepts. Automaton has 1549 states and 2110 transitions. Word has length 154 [2024-11-10 02:12:13,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:12:13,073 INFO L471 AbstractCegarLoop]: Abstraction has 1549 states and 2110 transitions. [2024-11-10 02:12:13,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 14.142857142857142) internal successors, (297), 21 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:13,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1549 states and 2110 transitions. [2024-11-10 02:12:13,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-10 02:12:13,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:12:13,077 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:12:13,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 02:12:13,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-10 02:12:13,278 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:12:13,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:12:13,278 INFO L85 PathProgramCache]: Analyzing trace with hash -977863406, now seen corresponding path program 1 times [2024-11-10 02:12:13,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:12:13,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127337096] [2024-11-10 02:12:13,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:12:13,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:12:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:12:16,031 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 34 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:12:16,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:12:16,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127337096] [2024-11-10 02:12:16,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127337096] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 02:12:16,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962833103] [2024-11-10 02:12:16,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:12:16,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:12:16,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 02:12:16,034 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) [2024-11-10 02:12:16,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 02:12:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:12:16,620 INFO L255 TraceCheckSpWp]: Trace formula consists of 1195 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-10 02:12:16,624 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 02:12:16,959 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 28 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:12:16,960 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 02:12:17,285 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:12:17,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962833103] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-10 02:12:17,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-10 02:12:17,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11, 7] total 22 [2024-11-10 02:12:17,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169864698] [2024-11-10 02:12:17,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:12:17,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 02:12:17,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:12:17,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 02:12:17,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2024-11-10 02:12:17,288 INFO L87 Difference]: Start difference. First operand 1549 states and 2110 transitions. Second operand has 8 states, 8 states have (on average 19.25) internal successors, (154), 8 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:17,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:12:17,686 INFO L93 Difference]: Finished difference Result 3269 states and 4442 transitions. [2024-11-10 02:12:17,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 02:12:17,686 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.25) internal successors, (154), 8 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 154 [2024-11-10 02:12:17,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:12:17,692 INFO L225 Difference]: With dead ends: 3269 [2024-11-10 02:12:17,692 INFO L226 Difference]: Without dead ends: 1756 [2024-11-10 02:12:17,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2024-11-10 02:12:17,695 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 813 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 02:12:17,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 660 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 02:12:17,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1756 states. [2024-11-10 02:12:17,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1756 to 1501. [2024-11-10 02:12:17,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1501 states, 1500 states have (on average 1.358) internal successors, (2037), 1500 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:17,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 2037 transitions. [2024-11-10 02:12:17,718 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 2037 transitions. Word has length 154 [2024-11-10 02:12:17,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:12:17,718 INFO L471 AbstractCegarLoop]: Abstraction has 1501 states and 2037 transitions. [2024-11-10 02:12:17,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.25) internal successors, (154), 8 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:17,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 2037 transitions. [2024-11-10 02:12:17,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-10 02:12:17,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:12:17,722 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:12:17,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-10 02:12:17,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-10 02:12:17,923 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:12:17,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:12:17,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1197375766, now seen corresponding path program 1 times [2024-11-10 02:12:17,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:12:17,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145370162] [2024-11-10 02:12:17,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:12:17,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:12:18,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:12:19,257 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 38 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:12:19,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:12:19,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145370162] [2024-11-10 02:12:19,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145370162] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 02:12:19,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957624850] [2024-11-10 02:12:19,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:12:19,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:12:19,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 02:12:19,261 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) [2024-11-10 02:12:19,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 02:12:19,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:12:19,818 INFO L255 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-10 02:12:19,821 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 02:12:19,952 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:12:19,953 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 02:12:19,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957624850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 02:12:19,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 02:12:19,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2024-11-10 02:12:19,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849364552] [2024-11-10 02:12:19,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 02:12:19,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 02:12:19,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:12:19,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 02:12:19,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-10 02:12:19,954 INFO L87 Difference]: Start difference. First operand 1501 states and 2037 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:20,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:12:20,254 INFO L93 Difference]: Finished difference Result 3853 states and 5209 transitions. [2024-11-10 02:12:20,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 02:12:20,255 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2024-11-10 02:12:20,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:12:20,260 INFO L225 Difference]: With dead ends: 3853 [2024-11-10 02:12:20,260 INFO L226 Difference]: Without dead ends: 2434 [2024-11-10 02:12:20,262 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2024-11-10 02:12:20,262 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 390 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 02:12:20,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 516 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 02:12:20,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2434 states. [2024-11-10 02:12:20,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2434 to 1555. [2024-11-10 02:12:20,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1554 states have (on average 1.3494208494208495) internal successors, (2097), 1554 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:20,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2097 transitions. [2024-11-10 02:12:20,293 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2097 transitions. Word has length 155 [2024-11-10 02:12:20,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:12:20,294 INFO L471 AbstractCegarLoop]: Abstraction has 1555 states and 2097 transitions. [2024-11-10 02:12:20,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:20,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2097 transitions. [2024-11-10 02:12:20,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-10 02:12:20,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:12:20,297 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:12:20,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-10 02:12:20,498 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,SelfDestructingSolverStorable28 [2024-11-10 02:12:20,498 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:12:20,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:12:20,499 INFO L85 PathProgramCache]: Analyzing trace with hash 584501417, now seen corresponding path program 1 times [2024-11-10 02:12:20,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:12:20,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707616040] [2024-11-10 02:12:20,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:12:20,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:12:20,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:12:21,711 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 22 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:12:21,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:12:21,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707616040] [2024-11-10 02:12:21,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707616040] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 02:12:21,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097323563] [2024-11-10 02:12:21,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:12:21,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:12:21,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 02:12:21,713 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) [2024-11-10 02:12:21,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 02:12:22,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:12:22,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 109 conjuncts are in the unsatisfiable core [2024-11-10 02:12:22,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 02:12:23,598 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 20 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:12:23,598 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 02:12:24,816 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 46 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:12:24,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097323563] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 02:12:24,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 02:12:24,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 24, 17] total 47 [2024-11-10 02:12:24,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870958655] [2024-11-10 02:12:24,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 02:12:24,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-11-10 02:12:24,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:12:24,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-11-10 02:12:24,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=359, Invalid=1803, Unknown=0, NotChecked=0, Total=2162 [2024-11-10 02:12:24,819 INFO L87 Difference]: Start difference. First operand 1555 states and 2097 transitions. Second operand has 47 states, 47 states have (on average 8.914893617021276) internal successors, (419), 47 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:29,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 02:12:29,949 INFO L93 Difference]: Finished difference Result 5459 states and 7384 transitions. [2024-11-10 02:12:29,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2024-11-10 02:12:29,949 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 8.914893617021276) internal successors, (419), 47 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2024-11-10 02:12:29,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 02:12:29,959 INFO L225 Difference]: With dead ends: 5459 [2024-11-10 02:12:29,959 INFO L226 Difference]: Without dead ends: 3986 [2024-11-10 02:12:29,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3665 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1604, Invalid=10606, Unknown=0, NotChecked=0, Total=12210 [2024-11-10 02:12:29,965 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 3220 mSDsluCounter, 4692 mSDsCounter, 0 mSdLazyCounter, 8764 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3220 SdHoareTripleChecker+Valid, 4870 SdHoareTripleChecker+Invalid, 8792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 8764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-10 02:12:29,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3220 Valid, 4870 Invalid, 8792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 8764 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-10 02:12:29,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3986 states. [2024-11-10 02:12:29,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3986 to 1555. [2024-11-10 02:12:29,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1554 states have (on average 1.333976833976834) internal successors, (2073), 1554 states have internal predecessors, (2073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:29,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2073 transitions. [2024-11-10 02:12:29,998 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2073 transitions. Word has length 155 [2024-11-10 02:12:29,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 02:12:29,998 INFO L471 AbstractCegarLoop]: Abstraction has 1555 states and 2073 transitions. [2024-11-10 02:12:29,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 8.914893617021276) internal successors, (419), 47 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 02:12:29,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2073 transitions. [2024-11-10 02:12:30,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-10 02:12:30,002 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 02:12:30,002 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 02:12:30,028 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-10 02:12:30,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:12:30,203 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 02:12:30,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 02:12:30,204 INFO L85 PathProgramCache]: Analyzing trace with hash 271755928, now seen corresponding path program 1 times [2024-11-10 02:12:30,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 02:12:30,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978519916] [2024-11-10 02:12:30,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:12:30,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 02:12:30,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:12:31,770 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-10 02:12:31,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 02:12:31,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978519916] [2024-11-10 02:12:31,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978519916] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 02:12:31,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703507112] [2024-11-10 02:12:31,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 02:12:31,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 02:12:31,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 02:12:31,774 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) [2024-11-10 02:12:31,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-10 02:12:32,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 02:12:32,669 INFO L255 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 218 conjuncts are in the unsatisfiable core [2024-11-10 02:12:32,679 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 02:12:34,725 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 10 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:12:34,725 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 02:12:37,949 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 5 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 02:12:37,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703507112] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 02:12:37,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 02:12:37,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 28, 27] total 56 [2024-11-10 02:12:37,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873478700] [2024-11-10 02:12:37,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 02:12:37,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-11-10 02:12:37,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 02:12:37,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-11-10 02:12:37,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=2645, Unknown=0, NotChecked=0, Total=3080 [2024-11-10 02:12:37,952 INFO L87 Difference]: Start difference. First operand 1555 states and 2073 transitions. Second operand has 56 states, 56 states have (on average 7.410714285714286) internal successors, (415), 56 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)