./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label30.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label30.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 80c5c0aba72ae94b1a7faaff5d18dcb1975bca24b2cca6ada65386f045cad987 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-23 21:02:33,780 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-23 21:02:33,870 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-23 21:02:33,875 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-23 21:02:33,876 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-23 21:02:33,909 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-23 21:02:33,910 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-23 21:02:33,910 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-23 21:02:33,911 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-23 21:02:33,913 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-23 21:02:33,913 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-23 21:02:33,914 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-23 21:02:33,914 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-23 21:02:33,916 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-23 21:02:33,916 INFO L153 SettingsManager]: * Use SBE=true [2024-10-23 21:02:33,917 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-23 21:02:33,917 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-23 21:02:33,917 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-23 21:02:33,918 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-23 21:02:33,918 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-23 21:02:33,918 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-23 21:02:33,919 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-23 21:02:33,920 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-23 21:02:33,920 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-23 21:02:33,920 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-23 21:02:33,921 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-23 21:02:33,921 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-23 21:02:33,921 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-23 21:02:33,922 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-23 21:02:33,922 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-23 21:02:33,922 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-23 21:02:33,923 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-23 21:02:33,923 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 21:02:33,923 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-23 21:02:33,924 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-23 21:02:33,924 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-23 21:02:33,924 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-23 21:02:33,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-23 21:02:33,925 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-23 21:02:33,925 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-23 21:02:33,925 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-23 21:02:33,926 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-23 21:02:33,926 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80c5c0aba72ae94b1a7faaff5d18dcb1975bca24b2cca6ada65386f045cad987 [2024-10-23 21:02:34,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-23 21:02:34,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-23 21:02:34,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-23 21:02:34,204 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-23 21:02:34,204 INFO L274 PluginConnector]: CDTParser initialized [2024-10-23 21:02:34,205 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label30.c [2024-10-23 21:02:35,694 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-23 21:02:35,997 INFO L384 CDTParser]: Found 1 translation units. [2024-10-23 21:02:36,002 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label30.c [2024-10-23 21:02:36,024 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6d60b4ac/5c4181d5a5644c709bd360ec583ff90d/FLAGeee0f0d59 [2024-10-23 21:02:36,043 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6d60b4ac/5c4181d5a5644c709bd360ec583ff90d [2024-10-23 21:02:36,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-23 21:02:36,047 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-23 21:02:36,050 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-23 21:02:36,051 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-23 21:02:36,056 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-23 21:02:36,057 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:02:36" (1/1) ... [2024-10-23 21:02:36,059 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@493875a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:02:36, skipping insertion in model container [2024-10-23 21:02:36,059 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:02:36" (1/1) ... [2024-10-23 21:02:36,116 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-23 21:02:36,370 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label30.c[4279,4292] [2024-10-23 21:02:36,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 21:02:36,612 INFO L200 MainTranslator]: Completed pre-run [2024-10-23 21:02:36,635 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label30.c[4279,4292] [2024-10-23 21:02:36,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 21:02:36,784 INFO L204 MainTranslator]: Completed translation [2024-10-23 21:02:36,784 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:02:36 WrapperNode [2024-10-23 21:02:36,785 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-23 21:02:36,786 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-23 21:02:36,786 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-23 21:02:36,786 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-23 21:02:36,794 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:02:36" (1/1) ... [2024-10-23 21:02:36,823 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:02:36" (1/1) ... [2024-10-23 21:02:36,933 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1000 [2024-10-23 21:02:36,934 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-23 21:02:36,935 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-23 21:02:36,935 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-23 21:02:36,935 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-23 21:02:36,946 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:02:36" (1/1) ... [2024-10-23 21:02:36,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:02:36" (1/1) ... [2024-10-23 21:02:36,967 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:02:36" (1/1) ... [2024-10-23 21:02:37,024 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-23 21:02:37,025 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:02:36" (1/1) ... [2024-10-23 21:02:37,025 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:02:36" (1/1) ... [2024-10-23 21:02:37,068 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:02:36" (1/1) ... [2024-10-23 21:02:37,080 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:02:36" (1/1) ... [2024-10-23 21:02:37,105 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:02:36" (1/1) ... [2024-10-23 21:02:37,112 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:02:36" (1/1) ... [2024-10-23 21:02:37,132 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-23 21:02:37,134 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-23 21:02:37,134 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-23 21:02:37,134 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-23 21:02:37,135 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:02:36" (1/1) ... [2024-10-23 21:02:37,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 21:02:37,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:02:37,170 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-23 21:02:37,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-23 21:02:37,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-23 21:02:37,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-23 21:02:37,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-23 21:02:37,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-23 21:02:37,291 INFO L238 CfgBuilder]: Building ICFG [2024-10-23 21:02:37,293 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-23 21:02:38,905 INFO L? ?]: Removed 129 outVars from TransFormulas that were not future-live. [2024-10-23 21:02:38,905 INFO L287 CfgBuilder]: Performing block encoding [2024-10-23 21:02:38,962 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-23 21:02:38,963 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-23 21:02:38,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:02:38 BoogieIcfgContainer [2024-10-23 21:02:38,964 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-23 21:02:38,966 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-23 21:02:38,966 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-23 21:02:38,970 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-23 21:02:38,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:02:36" (1/3) ... [2024-10-23 21:02:38,971 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c1de440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:02:38, skipping insertion in model container [2024-10-23 21:02:38,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:02:36" (2/3) ... [2024-10-23 21:02:38,971 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c1de440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:02:38, skipping insertion in model container [2024-10-23 21:02:38,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:02:38" (3/3) ... [2024-10-23 21:02:38,973 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label30.c [2024-10-23 21:02:38,988 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-23 21:02:38,989 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-23 21:02:39,063 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-23 21:02:39,072 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;@5aad901, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-23 21:02:39,073 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-23 21:02:39,079 INFO L276 IsEmpty]: Start isEmpty. Operand has 221 states, 219 states have (on average 1.917808219178082) internal successors, (420), 220 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:39,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-23 21:02:39,087 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:02:39,089 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:02:39,089 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:02:39,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:02:39,095 INFO L85 PathProgramCache]: Analyzing trace with hash -2130931167, now seen corresponding path program 1 times [2024-10-23 21:02:39,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:02:39,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173647300] [2024-10-23 21:02:39,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:02:39,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:02:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:02:39,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:02:39,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:02:39,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173647300] [2024-10-23 21:02:39,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173647300] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:02:39,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:02:39,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:02:39,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480909039] [2024-10-23 21:02:39,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:02:39,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-23 21:02:39,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:02:39,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-23 21:02:39,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 21:02:39,338 INFO L87 Difference]: Start difference. First operand has 221 states, 219 states have (on average 1.917808219178082) internal successors, (420), 220 states have internal predecessors, (420), 0 states have call successors, (0), 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 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:39,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:02:39,396 INFO L93 Difference]: Finished difference Result 441 states and 839 transitions. [2024-10-23 21:02:39,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-23 21:02:39,401 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-10-23 21:02:39,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:02:39,410 INFO L225 Difference]: With dead ends: 441 [2024-10-23 21:02:39,411 INFO L226 Difference]: Without dead ends: 219 [2024-10-23 21:02:39,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 21:02:39,416 INFO L432 NwaCegarLoop]: 355 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-23 21:02:39,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 355 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-23 21:02:39,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-10-23 21:02:39,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2024-10-23 21:02:39,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 218 states have (on average 1.628440366972477) internal successors, (355), 218 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:39,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 355 transitions. [2024-10-23 21:02:39,466 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 355 transitions. Word has length 28 [2024-10-23 21:02:39,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:02:39,466 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 355 transitions. [2024-10-23 21:02:39,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:39,467 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 355 transitions. [2024-10-23 21:02:39,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-23 21:02:39,467 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:02:39,467 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:02:39,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-23 21:02:39,468 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:02:39,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:02:39,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1169075321, now seen corresponding path program 1 times [2024-10-23 21:02:39,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:02:39,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636494938] [2024-10-23 21:02:39,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:02:39,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:02:39,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:02:39,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:02:39,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:02:39,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636494938] [2024-10-23 21:02:39,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636494938] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:02:39,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:02:39,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:02:39,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460369895] [2024-10-23 21:02:39,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:02:39,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:02:39,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:02:39,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:02:39,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:02:39,639 INFO L87 Difference]: Start difference. First operand 219 states and 355 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:40,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:02:40,541 INFO L93 Difference]: Finished difference Result 630 states and 1029 transitions. [2024-10-23 21:02:40,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:02:40,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-10-23 21:02:40,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:02:40,544 INFO L225 Difference]: With dead ends: 630 [2024-10-23 21:02:40,545 INFO L226 Difference]: Without dead ends: 412 [2024-10-23 21:02:40,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:02:40,547 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 179 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-23 21:02:40,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 144 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-23 21:02:40,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-10-23 21:02:40,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 410. [2024-10-23 21:02:40,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 409 states have (on average 1.4596577017114913) internal successors, (597), 409 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:40,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 597 transitions. [2024-10-23 21:02:40,577 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 597 transitions. Word has length 28 [2024-10-23 21:02:40,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:02:40,577 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 597 transitions. [2024-10-23 21:02:40,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:40,578 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 597 transitions. [2024-10-23 21:02:40,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-23 21:02:40,584 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:02:40,584 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:02:40,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-23 21:02:40,585 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:02:40,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:02:40,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1046043342, now seen corresponding path program 1 times [2024-10-23 21:02:40,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:02:40,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729666579] [2024-10-23 21:02:40,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:02:40,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:02:40,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:02:40,824 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:02:40,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:02:40,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729666579] [2024-10-23 21:02:40,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729666579] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:02:40,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:02:40,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:02:40,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255219220] [2024-10-23 21:02:40,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:02:40,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:02:40,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:02:40,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:02:40,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:02:40,830 INFO L87 Difference]: Start difference. First operand 410 states and 597 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:41,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:02:41,649 INFO L93 Difference]: Finished difference Result 1208 states and 1764 transitions. [2024-10-23 21:02:41,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:02:41,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2024-10-23 21:02:41,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:02:41,654 INFO L225 Difference]: With dead ends: 1208 [2024-10-23 21:02:41,655 INFO L226 Difference]: Without dead ends: 799 [2024-10-23 21:02:41,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:02:41,661 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 144 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-23 21:02:41,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 118 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-23 21:02:41,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2024-10-23 21:02:41,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 786. [2024-10-23 21:02:41,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 785 states have (on average 1.3859872611464967) internal successors, (1088), 785 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:41,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1088 transitions. [2024-10-23 21:02:41,699 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1088 transitions. Word has length 96 [2024-10-23 21:02:41,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:02:41,699 INFO L471 AbstractCegarLoop]: Abstraction has 786 states and 1088 transitions. [2024-10-23 21:02:41,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:41,700 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1088 transitions. [2024-10-23 21:02:41,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-23 21:02:41,702 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:02:41,703 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:02:41,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-23 21:02:41,704 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:02:41,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:02:41,708 INFO L85 PathProgramCache]: Analyzing trace with hash 2116016434, now seen corresponding path program 1 times [2024-10-23 21:02:41,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:02:41,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732689300] [2024-10-23 21:02:41,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:02:41,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:02:41,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:02:42,114 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:02:42,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:02:42,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732689300] [2024-10-23 21:02:42,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732689300] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:02:42,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:02:42,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:02:42,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773970661] [2024-10-23 21:02:42,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:02:42,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:02:42,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:02:42,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:02:42,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:02:42,118 INFO L87 Difference]: Start difference. First operand 786 states and 1088 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:42,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:02:42,753 INFO L93 Difference]: Finished difference Result 1941 states and 2630 transitions. [2024-10-23 21:02:42,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:02:42,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2024-10-23 21:02:42,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:02:42,758 INFO L225 Difference]: With dead ends: 1941 [2024-10-23 21:02:42,759 INFO L226 Difference]: Without dead ends: 1156 [2024-10-23 21:02:42,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:02:42,761 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 120 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-23 21:02:42,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 188 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-23 21:02:42,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2024-10-23 21:02:42,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1155. [2024-10-23 21:02:42,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 1154 states have (on average 1.2781629116117852) internal successors, (1475), 1154 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:42,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1475 transitions. [2024-10-23 21:02:42,782 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1475 transitions. Word has length 97 [2024-10-23 21:02:42,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:02:42,783 INFO L471 AbstractCegarLoop]: Abstraction has 1155 states and 1475 transitions. [2024-10-23 21:02:42,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:42,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1475 transitions. [2024-10-23 21:02:42,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-23 21:02:42,785 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:02:42,786 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:02:42,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-23 21:02:42,786 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:02:42,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:02:42,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1101337846, now seen corresponding path program 1 times [2024-10-23 21:02:42,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:02:42,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629890759] [2024-10-23 21:02:42,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:02:42,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:02:42,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:02:43,013 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:02:43,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:02:43,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629890759] [2024-10-23 21:02:43,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629890759] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:02:43,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:02:43,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:02:43,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096166551] [2024-10-23 21:02:43,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:02:43,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:02:43,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:02:43,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:02:43,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:02:43,015 INFO L87 Difference]: Start difference. First operand 1155 states and 1475 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:43,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:02:43,697 INFO L93 Difference]: Finished difference Result 2690 states and 3514 transitions. [2024-10-23 21:02:43,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:02:43,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2024-10-23 21:02:43,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:02:43,704 INFO L225 Difference]: With dead ends: 2690 [2024-10-23 21:02:43,704 INFO L226 Difference]: Without dead ends: 1720 [2024-10-23 21:02:43,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:02:43,706 INFO L432 NwaCegarLoop]: 313 mSDtfsCounter, 177 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-23 21:02:43,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 333 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-23 21:02:43,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2024-10-23 21:02:43,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1527. [2024-10-23 21:02:43,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1527 states, 1526 states have (on average 1.261467889908257) internal successors, (1925), 1526 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:43,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 1925 transitions. [2024-10-23 21:02:43,734 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 1925 transitions. Word has length 140 [2024-10-23 21:02:43,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:02:43,736 INFO L471 AbstractCegarLoop]: Abstraction has 1527 states and 1925 transitions. [2024-10-23 21:02:43,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:43,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 1925 transitions. [2024-10-23 21:02:43,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-23 21:02:43,740 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:02:43,740 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:02:43,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-23 21:02:43,742 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:02:43,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:02:43,742 INFO L85 PathProgramCache]: Analyzing trace with hash -608129931, now seen corresponding path program 1 times [2024-10-23 21:02:43,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:02:43,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905724318] [2024-10-23 21:02:43,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:02:43,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:02:43,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:02:43,893 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:02:43,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:02:43,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905724318] [2024-10-23 21:02:43,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905724318] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:02:43,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:02:43,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:02:43,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516579699] [2024-10-23 21:02:43,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:02:43,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:02:43,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:02:43,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:02:43,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:02:43,895 INFO L87 Difference]: Start difference. First operand 1527 states and 1925 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 2 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) [2024-10-23 21:02:44,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:02:44,628 INFO L93 Difference]: Finished difference Result 4157 states and 5315 transitions. [2024-10-23 21:02:44,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:02:44,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 2 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 [2024-10-23 21:02:44,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:02:44,638 INFO L225 Difference]: With dead ends: 4157 [2024-10-23 21:02:44,639 INFO L226 Difference]: Without dead ends: 2631 [2024-10-23 21:02:44,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:02:44,644 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 115 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:02:44,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 153 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-23 21:02:44,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2631 states. [2024-10-23 21:02:44,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2631 to 2447. [2024-10-23 21:02:44,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2447 states, 2446 states have (on average 1.2174979558462797) internal successors, (2978), 2446 states have internal predecessors, (2978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:44,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2447 states to 2447 states and 2978 transitions. [2024-10-23 21:02:44,688 INFO L78 Accepts]: Start accepts. Automaton has 2447 states and 2978 transitions. Word has length 155 [2024-10-23 21:02:44,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:02:44,690 INFO L471 AbstractCegarLoop]: Abstraction has 2447 states and 2978 transitions. [2024-10-23 21:02:44,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 2 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) [2024-10-23 21:02:44,690 INFO L276 IsEmpty]: Start isEmpty. Operand 2447 states and 2978 transitions. [2024-10-23 21:02:44,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-23 21:02:44,692 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:02:44,692 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:02:44,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-23 21:02:44,692 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:02:44,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:02:44,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1942076651, now seen corresponding path program 1 times [2024-10-23 21:02:44,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:02:44,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573233603] [2024-10-23 21:02:44,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:02:44,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:02:44,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:02:44,867 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:02:44,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:02:44,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573233603] [2024-10-23 21:02:44,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573233603] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:02:44,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:02:44,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:02:44,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722284557] [2024-10-23 21:02:44,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:02:44,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:02:44,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:02:44,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:02:44,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:02:44,872 INFO L87 Difference]: Start difference. First operand 2447 states and 2978 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:45,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:02:45,571 INFO L93 Difference]: Finished difference Result 5638 states and 6867 transitions. [2024-10-23 21:02:45,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:02:45,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2024-10-23 21:02:45,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:02:45,582 INFO L225 Difference]: With dead ends: 5638 [2024-10-23 21:02:45,582 INFO L226 Difference]: Without dead ends: 3192 [2024-10-23 21:02:45,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:02:45,586 INFO L432 NwaCegarLoop]: 336 mSDtfsCounter, 172 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:02:45,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 356 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-23 21:02:45,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3192 states. [2024-10-23 21:02:45,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3192 to 3183. [2024-10-23 21:02:45,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3183 states, 3182 states have (on average 1.1992457573852924) internal successors, (3816), 3182 states have internal predecessors, (3816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:45,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3183 states to 3183 states and 3816 transitions. [2024-10-23 21:02:45,640 INFO L78 Accepts]: Start accepts. Automaton has 3183 states and 3816 transitions. Word has length 171 [2024-10-23 21:02:45,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:02:45,641 INFO L471 AbstractCegarLoop]: Abstraction has 3183 states and 3816 transitions. [2024-10-23 21:02:45,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:45,641 INFO L276 IsEmpty]: Start isEmpty. Operand 3183 states and 3816 transitions. [2024-10-23 21:02:45,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-10-23 21:02:45,644 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:02:45,644 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:02:45,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-23 21:02:45,645 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:02:45,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:02:45,645 INFO L85 PathProgramCache]: Analyzing trace with hash -2039710857, now seen corresponding path program 1 times [2024-10-23 21:02:45,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:02:45,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535652858] [2024-10-23 21:02:45,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:02:45,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:02:45,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:02:45,934 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-23 21:02:45,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:02:45,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535652858] [2024-10-23 21:02:45,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535652858] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:02:45,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:02:45,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:02:45,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826037356] [2024-10-23 21:02:45,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:02:45,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:02:45,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:02:45,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:02:45,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:02:45,937 INFO L87 Difference]: Start difference. First operand 3183 states and 3816 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 2 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:46,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:02:46,517 INFO L93 Difference]: Finished difference Result 7107 states and 8503 transitions. [2024-10-23 21:02:46,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:02:46,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 2 states have internal predecessors, (184), 0 states have call successors, (0), 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 209 [2024-10-23 21:02:46,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:02:46,531 INFO L225 Difference]: With dead ends: 7107 [2024-10-23 21:02:46,531 INFO L226 Difference]: Without dead ends: 3925 [2024-10-23 21:02:46,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:02:46,536 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 37 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-23 21:02:46,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 152 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-23 21:02:46,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3925 states. [2024-10-23 21:02:46,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3925 to 3924. [2024-10-23 21:02:46,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3924 states, 3923 states have (on average 1.1939841957685444) internal successors, (4684), 3923 states have internal predecessors, (4684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:46,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3924 states to 3924 states and 4684 transitions. [2024-10-23 21:02:46,603 INFO L78 Accepts]: Start accepts. Automaton has 3924 states and 4684 transitions. Word has length 209 [2024-10-23 21:02:46,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:02:46,604 INFO L471 AbstractCegarLoop]: Abstraction has 3924 states and 4684 transitions. [2024-10-23 21:02:46,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 2 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:46,604 INFO L276 IsEmpty]: Start isEmpty. Operand 3924 states and 4684 transitions. [2024-10-23 21:02:46,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-10-23 21:02:46,607 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:02:46,607 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-23 21:02:46,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-23 21:02:46,607 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:02:46,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:02:46,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1561964310, now seen corresponding path program 1 times [2024-10-23 21:02:46,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:02:46,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117599651] [2024-10-23 21:02:46,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:02:46,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:02:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:02:46,869 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-10-23 21:02:46,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:02:46,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117599651] [2024-10-23 21:02:46,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117599651] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:02:46,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:02:46,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:02:46,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481482541] [2024-10-23 21:02:46,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:02:46,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:02:46,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:02:46,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:02:46,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:02:46,872 INFO L87 Difference]: Start difference. First operand 3924 states and 4684 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:47,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:02:47,702 INFO L93 Difference]: Finished difference Result 8590 states and 10346 transitions. [2024-10-23 21:02:47,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:02:47,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2024-10-23 21:02:47,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:02:47,721 INFO L225 Difference]: With dead ends: 8590 [2024-10-23 21:02:47,721 INFO L226 Difference]: Without dead ends: 4667 [2024-10-23 21:02:47,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:02:47,727 INFO L432 NwaCegarLoop]: 367 mSDtfsCounter, 168 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-23 21:02:47,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 387 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-23 21:02:47,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4667 states. [2024-10-23 21:02:47,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4667 to 4476. [2024-10-23 21:02:47,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4476 states, 4475 states have (on average 1.186145251396648) internal successors, (5308), 4475 states have internal predecessors, (5308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:47,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4476 states to 4476 states and 5308 transitions. [2024-10-23 21:02:47,801 INFO L78 Accepts]: Start accepts. Automaton has 4476 states and 5308 transitions. Word has length 210 [2024-10-23 21:02:47,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:02:47,801 INFO L471 AbstractCegarLoop]: Abstraction has 4476 states and 5308 transitions. [2024-10-23 21:02:47,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:47,801 INFO L276 IsEmpty]: Start isEmpty. Operand 4476 states and 5308 transitions. [2024-10-23 21:02:47,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-10-23 21:02:47,805 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:02:47,805 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2024-10-23 21:02:47,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-23 21:02:47,806 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:02:47,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:02:47,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1656522296, now seen corresponding path program 1 times [2024-10-23 21:02:47,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:02:47,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490943852] [2024-10-23 21:02:47,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:02:47,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:02:47,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:02:48,241 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:02:48,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:02:48,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490943852] [2024-10-23 21:02:48,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490943852] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:02:48,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:02:48,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-23 21:02:48,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271117970] [2024-10-23 21:02:48,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:02:48,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:02:48,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:02:48,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:02:48,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:02:48,244 INFO L87 Difference]: Start difference. First operand 4476 states and 5308 transitions. Second operand has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:49,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:02:49,518 INFO L93 Difference]: Finished difference Result 14320 states and 17013 transitions. [2024-10-23 21:02:49,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:02:49,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 0 states have call successors, (0), 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 230 [2024-10-23 21:02:49,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:02:49,553 INFO L225 Difference]: With dead ends: 14320 [2024-10-23 21:02:49,554 INFO L226 Difference]: Without dead ends: 9845 [2024-10-23 21:02:49,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:02:49,562 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 308 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-23 21:02:49,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 188 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-23 21:02:49,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9845 states. [2024-10-23 21:02:49,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9845 to 7626. [2024-10-23 21:02:49,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7626 states, 7625 states have (on average 1.1702295081967213) internal successors, (8923), 7625 states have internal predecessors, (8923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:49,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7626 states to 7626 states and 8923 transitions. [2024-10-23 21:02:49,685 INFO L78 Accepts]: Start accepts. Automaton has 7626 states and 8923 transitions. Word has length 230 [2024-10-23 21:02:49,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:02:49,686 INFO L471 AbstractCegarLoop]: Abstraction has 7626 states and 8923 transitions. [2024-10-23 21:02:49,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:49,687 INFO L276 IsEmpty]: Start isEmpty. Operand 7626 states and 8923 transitions. [2024-10-23 21:02:49,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-10-23 21:02:49,690 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:02:49,690 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2024-10-23 21:02:49,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-23 21:02:49,690 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:02:49,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:02:49,691 INFO L85 PathProgramCache]: Analyzing trace with hash 832727969, now seen corresponding path program 1 times [2024-10-23 21:02:49,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:02:49,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57008092] [2024-10-23 21:02:49,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:02:49,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:02:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:02:50,117 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:02:50,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:02:50,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57008092] [2024-10-23 21:02:50,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57008092] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:02:50,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:02:50,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-23 21:02:50,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914695201] [2024-10-23 21:02:50,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:02:50,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:02:50,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:02:50,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:02:50,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:02:50,120 INFO L87 Difference]: Start difference. First operand 7626 states and 8923 transitions. Second operand has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:51,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:02:51,497 INFO L93 Difference]: Finished difference Result 20233 states and 23745 transitions. [2024-10-23 21:02:51,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:02:51,498 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 240 [2024-10-23 21:02:51,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:02:51,532 INFO L225 Difference]: With dead ends: 20233 [2024-10-23 21:02:51,532 INFO L226 Difference]: Without dead ends: 12608 [2024-10-23 21:02:51,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:02:51,542 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 329 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 1291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-23 21:02:51,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 107 Invalid, 1291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-23 21:02:51,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12608 states. [2024-10-23 21:02:51,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12608 to 10201. [2024-10-23 21:02:51,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10201 states, 10200 states have (on average 1.1734313725490195) internal successors, (11969), 10200 states have internal predecessors, (11969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:51,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10201 states to 10201 states and 11969 transitions. [2024-10-23 21:02:51,714 INFO L78 Accepts]: Start accepts. Automaton has 10201 states and 11969 transitions. Word has length 240 [2024-10-23 21:02:51,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:02:51,715 INFO L471 AbstractCegarLoop]: Abstraction has 10201 states and 11969 transitions. [2024-10-23 21:02:51,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:51,716 INFO L276 IsEmpty]: Start isEmpty. Operand 10201 states and 11969 transitions. [2024-10-23 21:02:51,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-10-23 21:02:51,719 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:02:51,721 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2024-10-23 21:02:51,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-23 21:02:51,721 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:02:51,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:02:51,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1088558422, now seen corresponding path program 1 times [2024-10-23 21:02:51,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:02:51,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69631649] [2024-10-23 21:02:51,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:02:51,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:02:51,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:02:51,909 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:02:51,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:02:51,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69631649] [2024-10-23 21:02:51,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69631649] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:02:51,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:02:51,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:02:51,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022981945] [2024-10-23 21:02:51,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:02:51,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:02:51,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:02:51,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:02:51,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:02:51,912 INFO L87 Difference]: Start difference. First operand 10201 states and 11969 transitions. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:52,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:02:52,676 INFO L93 Difference]: Finished difference Result 20398 states and 23934 transitions. [2024-10-23 21:02:52,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:02:52,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 240 [2024-10-23 21:02:52,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:02:52,695 INFO L225 Difference]: With dead ends: 20398 [2024-10-23 21:02:52,695 INFO L226 Difference]: Without dead ends: 10198 [2024-10-23 21:02:52,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:02:52,707 INFO L432 NwaCegarLoop]: 283 mSDtfsCounter, 148 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:02:52,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 302 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-23 21:02:52,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10198 states. [2024-10-23 21:02:52,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10198 to 10198. [2024-10-23 21:02:52,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10198 states, 10197 states have (on average 1.1445523193096008) internal successors, (11671), 10197 states have internal predecessors, (11671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:52,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10198 states to 10198 states and 11671 transitions. [2024-10-23 21:02:52,836 INFO L78 Accepts]: Start accepts. Automaton has 10198 states and 11671 transitions. Word has length 240 [2024-10-23 21:02:52,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:02:52,836 INFO L471 AbstractCegarLoop]: Abstraction has 10198 states and 11671 transitions. [2024-10-23 21:02:52,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:52,837 INFO L276 IsEmpty]: Start isEmpty. Operand 10198 states and 11671 transitions. [2024-10-23 21:02:52,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-10-23 21:02:52,840 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:02:52,840 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2024-10-23 21:02:52,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-23 21:02:52,841 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:02:52,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:02:52,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1484030287, now seen corresponding path program 1 times [2024-10-23 21:02:52,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:02:52,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558340349] [2024-10-23 21:02:52,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:02:52,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:02:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:02:52,973 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-10-23 21:02:52,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:02:52,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558340349] [2024-10-23 21:02:52,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558340349] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:02:52,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:02:52,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:02:52,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932560002] [2024-10-23 21:02:52,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:02:52,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:02:52,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:02:52,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:02:52,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:02:52,977 INFO L87 Difference]: Start difference. First operand 10198 states and 11671 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:53,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:02:53,825 INFO L93 Difference]: Finished difference Result 22786 states and 26112 transitions. [2024-10-23 21:02:53,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:02:53,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 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 242 [2024-10-23 21:02:53,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:02:53,850 INFO L225 Difference]: With dead ends: 22786 [2024-10-23 21:02:53,850 INFO L226 Difference]: Without dead ends: 12589 [2024-10-23 21:02:53,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:02:53,863 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 169 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-23 21:02:53,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 367 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-23 21:02:53,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12589 states. [2024-10-23 21:02:53,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12589 to 11113. [2024-10-23 21:02:53,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11113 states, 11112 states have (on average 1.1383189344852411) internal successors, (12649), 11112 states have internal predecessors, (12649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:54,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11113 states to 11113 states and 12649 transitions. [2024-10-23 21:02:54,008 INFO L78 Accepts]: Start accepts. Automaton has 11113 states and 12649 transitions. Word has length 242 [2024-10-23 21:02:54,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:02:54,008 INFO L471 AbstractCegarLoop]: Abstraction has 11113 states and 12649 transitions. [2024-10-23 21:02:54,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:54,009 INFO L276 IsEmpty]: Start isEmpty. Operand 11113 states and 12649 transitions. [2024-10-23 21:02:54,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-10-23 21:02:54,013 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:02:54,013 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2024-10-23 21:02:54,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-23 21:02:54,014 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:02:54,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:02:54,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1218271228, now seen corresponding path program 1 times [2024-10-23 21:02:54,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:02:54,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406722011] [2024-10-23 21:02:54,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:02:54,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:02:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:02:54,272 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-10-23 21:02:54,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:02:54,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406722011] [2024-10-23 21:02:54,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406722011] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:02:54,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:02:54,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:02:54,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286830641] [2024-10-23 21:02:54,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:02:54,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:02:54,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:02:54,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:02:54,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:02:54,275 INFO L87 Difference]: Start difference. First operand 11113 states and 12649 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:55,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:02:55,145 INFO L93 Difference]: Finished difference Result 22412 states and 25493 transitions. [2024-10-23 21:02:55,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:02:55,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 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 247 [2024-10-23 21:02:55,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:02:55,164 INFO L225 Difference]: With dead ends: 22412 [2024-10-23 21:02:55,164 INFO L226 Difference]: Without dead ends: 11300 [2024-10-23 21:02:55,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:02:55,176 INFO L432 NwaCegarLoop]: 349 mSDtfsCounter, 171 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-23 21:02:55,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 370 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-23 21:02:55,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11300 states. [2024-10-23 21:02:55,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11300 to 11112. [2024-10-23 21:02:55,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11112 states, 11111 states have (on average 1.1175411754117541) internal successors, (12417), 11111 states have internal predecessors, (12417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:55,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11112 states to 11112 states and 12417 transitions. [2024-10-23 21:02:55,295 INFO L78 Accepts]: Start accepts. Automaton has 11112 states and 12417 transitions. Word has length 247 [2024-10-23 21:02:55,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:02:55,295 INFO L471 AbstractCegarLoop]: Abstraction has 11112 states and 12417 transitions. [2024-10-23 21:02:55,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:55,296 INFO L276 IsEmpty]: Start isEmpty. Operand 11112 states and 12417 transitions. [2024-10-23 21:02:55,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-10-23 21:02:55,300 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:02:55,301 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2024-10-23 21:02:55,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-23 21:02:55,302 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:02:55,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:02:55,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1875070445, now seen corresponding path program 1 times [2024-10-23 21:02:55,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:02:55,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994347852] [2024-10-23 21:02:55,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:02:55,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:02:55,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:02:55,905 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 109 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:02:55,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:02:55,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994347852] [2024-10-23 21:02:55,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994347852] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 21:02:55,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864928205] [2024-10-23 21:02:55,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:02:55,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:02:55,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:02:55,908 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-23 21:02:55,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-23 21:02:56,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:02:56,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-23 21:02:56,069 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 21:02:56,626 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:02:56,626 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 21:02:56,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864928205] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:02:56,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-23 21:02:56,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-23 21:02:56,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072756441] [2024-10-23 21:02:56,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:02:56,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:02:56,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:02:56,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:02:56,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-23 21:02:56,628 INFO L87 Difference]: Start difference. First operand 11112 states and 12417 transitions. Second operand has 4 states, 4 states have (on average 65.25) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:57,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:02:57,534 INFO L93 Difference]: Finished difference Result 22226 states and 24837 transitions. [2024-10-23 21:02:57,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:02:57,534 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 65.25) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 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 261 [2024-10-23 21:02:57,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:02:57,548 INFO L225 Difference]: With dead ends: 22226 [2024-10-23 21:02:57,548 INFO L226 Difference]: Without dead ends: 11115 [2024-10-23 21:02:57,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-23 21:02:57,561 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 171 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 1038 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 1079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-23 21:02:57,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 167 Invalid, 1079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1038 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-23 21:02:57,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11115 states. [2024-10-23 21:02:57,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11115 to 11112. [2024-10-23 21:02:57,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11112 states, 11111 states have (on average 1.116461164611646) internal successors, (12405), 11111 states have internal predecessors, (12405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:57,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11112 states to 11112 states and 12405 transitions. [2024-10-23 21:02:57,671 INFO L78 Accepts]: Start accepts. Automaton has 11112 states and 12405 transitions. Word has length 261 [2024-10-23 21:02:57,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:02:57,672 INFO L471 AbstractCegarLoop]: Abstraction has 11112 states and 12405 transitions. [2024-10-23 21:02:57,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.25) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:57,672 INFO L276 IsEmpty]: Start isEmpty. Operand 11112 states and 12405 transitions. [2024-10-23 21:02:57,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-10-23 21:02:57,679 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:02:57,680 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-23 21:02:57,698 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-23 21:02:57,880 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,SelfDestructingSolverStorable14 [2024-10-23 21:02:57,881 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:02:57,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:02:57,881 INFO L85 PathProgramCache]: Analyzing trace with hash -2024916437, now seen corresponding path program 1 times [2024-10-23 21:02:57,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:02:57,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365242316] [2024-10-23 21:02:57,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:02:57,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:02:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:02:58,048 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2024-10-23 21:02:58,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:02:58,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365242316] [2024-10-23 21:02:58,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365242316] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:02:58,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:02:58,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:02:58,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923428513] [2024-10-23 21:02:58,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:02:58,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:02:58,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:02:58,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:02:58,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:02:58,051 INFO L87 Difference]: Start difference. First operand 11112 states and 12405 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:58,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:02:58,680 INFO L93 Difference]: Finished difference Result 24614 states and 27484 transitions. [2024-10-23 21:02:58,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:02:58,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 295 [2024-10-23 21:02:58,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:02:58,701 INFO L225 Difference]: With dead ends: 24614 [2024-10-23 21:02:58,701 INFO L226 Difference]: Without dead ends: 13503 [2024-10-23 21:02:58,711 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:02:58,712 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 191 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-23 21:02:58,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 142 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-23 21:02:58,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13503 states. [2024-10-23 21:02:58,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13503 to 11107. [2024-10-23 21:02:58,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11107 states, 11106 states have (on average 1.117323969025752) internal successors, (12409), 11106 states have internal predecessors, (12409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:58,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11107 states to 11107 states and 12409 transitions. [2024-10-23 21:02:58,844 INFO L78 Accepts]: Start accepts. Automaton has 11107 states and 12409 transitions. Word has length 295 [2024-10-23 21:02:58,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:02:58,844 INFO L471 AbstractCegarLoop]: Abstraction has 11107 states and 12409 transitions. [2024-10-23 21:02:58,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:02:58,844 INFO L276 IsEmpty]: Start isEmpty. Operand 11107 states and 12409 transitions. [2024-10-23 21:02:58,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-10-23 21:02:58,851 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:02:58,851 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-23 21:02:58,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-23 21:02:58,852 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:02:58,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:02:58,852 INFO L85 PathProgramCache]: Analyzing trace with hash 69578253, now seen corresponding path program 1 times [2024-10-23 21:02:58,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:02:58,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343390440] [2024-10-23 21:02:58,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:02:58,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:02:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:02:59,366 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 238 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-10-23 21:02:59,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:02:59,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343390440] [2024-10-23 21:02:59,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343390440] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:02:59,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:02:59,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-23 21:02:59,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519031849] [2024-10-23 21:02:59,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:02:59,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:02:59,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:02:59,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:02:59,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:02:59,369 INFO L87 Difference]: Start difference. First operand 11107 states and 12409 transitions. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:00,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:03:00,391 INFO L93 Difference]: Finished difference Result 27771 states and 31007 transitions. [2024-10-23 21:03:00,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:03:00,391 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 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 299 [2024-10-23 21:03:00,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:03:00,413 INFO L225 Difference]: With dead ends: 27771 [2024-10-23 21:03:00,414 INFO L226 Difference]: Without dead ends: 15924 [2024-10-23 21:03:00,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:03:00,425 INFO L432 NwaCegarLoop]: 356 mSDtfsCounter, 311 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-23 21:03:00,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 396 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-23 21:03:00,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15924 states. [2024-10-23 21:03:00,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15924 to 12596. [2024-10-23 21:03:00,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12596 states, 12595 states have (on average 1.117665740373164) internal successors, (14077), 12595 states have internal predecessors, (14077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:00,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12596 states to 12596 states and 14077 transitions. [2024-10-23 21:03:00,669 INFO L78 Accepts]: Start accepts. Automaton has 12596 states and 14077 transitions. Word has length 299 [2024-10-23 21:03:00,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:03:00,670 INFO L471 AbstractCegarLoop]: Abstraction has 12596 states and 14077 transitions. [2024-10-23 21:03:00,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:00,671 INFO L276 IsEmpty]: Start isEmpty. Operand 12596 states and 14077 transitions. [2024-10-23 21:03:00,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2024-10-23 21:03:00,678 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:03:00,678 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-23 21:03:00,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-23 21:03:00,678 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:03:00,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:03:00,679 INFO L85 PathProgramCache]: Analyzing trace with hash -439314635, now seen corresponding path program 1 times [2024-10-23 21:03:00,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:03:00,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241523166] [2024-10-23 21:03:00,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:03:00,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:03:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:03:01,619 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 174 proven. 80 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-23 21:03:01,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:03:01,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241523166] [2024-10-23 21:03:01,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241523166] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 21:03:01,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366457117] [2024-10-23 21:03:01,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:03:01,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:03:01,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:03:01,622 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) [2024-10-23 21:03:01,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-23 21:03:01,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:03:01,757 INFO L255 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-23 21:03:01,763 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 21:03:02,237 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-23 21:03:02,238 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 21:03:02,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366457117] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:03:02,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-23 21:03:02,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-10-23 21:03:02,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454589472] [2024-10-23 21:03:02,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:03:02,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:03:02,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:03:02,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:03:02,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-23 21:03:02,240 INFO L87 Difference]: Start difference. First operand 12596 states and 14077 transitions. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:02,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:03:02,993 INFO L93 Difference]: Finished difference Result 25377 states and 28345 transitions. [2024-10-23 21:03:02,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:03:02,993 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 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 315 [2024-10-23 21:03:02,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:03:03,010 INFO L225 Difference]: With dead ends: 25377 [2024-10-23 21:03:03,011 INFO L226 Difference]: Without dead ends: 12782 [2024-10-23 21:03:03,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-23 21:03:03,021 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 292 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:03:03,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 148 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-23 21:03:03,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12782 states. [2024-10-23 21:03:03,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12782 to 12596. [2024-10-23 21:03:03,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12596 states, 12595 states have (on average 1.1167129813418024) internal successors, (14065), 12595 states have internal predecessors, (14065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:03,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12596 states to 12596 states and 14065 transitions. [2024-10-23 21:03:03,203 INFO L78 Accepts]: Start accepts. Automaton has 12596 states and 14065 transitions. Word has length 315 [2024-10-23 21:03:03,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:03:03,203 INFO L471 AbstractCegarLoop]: Abstraction has 12596 states and 14065 transitions. [2024-10-23 21:03:03,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:03,204 INFO L276 IsEmpty]: Start isEmpty. Operand 12596 states and 14065 transitions. [2024-10-23 21:03:03,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2024-10-23 21:03:03,211 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:03:03,212 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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] [2024-10-23 21:03:03,230 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-23 21:03:03,412 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,SelfDestructingSolverStorable17 [2024-10-23 21:03:03,413 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:03:03,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:03:03,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1158217078, now seen corresponding path program 1 times [2024-10-23 21:03:03,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:03:03,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673206810] [2024-10-23 21:03:03,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:03:03,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:03:03,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:03:03,700 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-10-23 21:03:03,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:03:03,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673206810] [2024-10-23 21:03:03,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673206810] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:03:03,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:03:03,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:03:03,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180758814] [2024-10-23 21:03:03,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:03:03,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:03:03,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:03:03,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:03:03,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:03,702 INFO L87 Difference]: Start difference. First operand 12596 states and 14065 transitions. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:04,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:03:04,347 INFO L93 Difference]: Finished difference Result 27595 states and 30779 transitions. [2024-10-23 21:03:04,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:03:04,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 326 [2024-10-23 21:03:04,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:03:04,363 INFO L225 Difference]: With dead ends: 27595 [2024-10-23 21:03:04,363 INFO L226 Difference]: Without dead ends: 15000 [2024-10-23 21:03:04,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:04,373 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 192 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-23 21:03:04,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 133 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-23 21:03:04,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15000 states. [2024-10-23 21:03:04,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15000 to 11480. [2024-10-23 21:03:04,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11480 states, 11479 states have (on average 1.1169962540290965) internal successors, (12822), 11479 states have internal predecessors, (12822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:04,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11480 states to 11480 states and 12822 transitions. [2024-10-23 21:03:04,614 INFO L78 Accepts]: Start accepts. Automaton has 11480 states and 12822 transitions. Word has length 326 [2024-10-23 21:03:04,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:03:04,614 INFO L471 AbstractCegarLoop]: Abstraction has 11480 states and 12822 transitions. [2024-10-23 21:03:04,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:04,615 INFO L276 IsEmpty]: Start isEmpty. Operand 11480 states and 12822 transitions. [2024-10-23 21:03:04,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2024-10-23 21:03:04,624 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:03:04,624 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-23 21:03:04,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-23 21:03:04,625 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:03:04,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:03:04,626 INFO L85 PathProgramCache]: Analyzing trace with hash 787229754, now seen corresponding path program 1 times [2024-10-23 21:03:04,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:03:04,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306748824] [2024-10-23 21:03:04,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:03:04,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:03:04,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:03:05,298 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 259 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-10-23 21:03:05,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:03:05,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306748824] [2024-10-23 21:03:05,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306748824] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:03:05,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:03:05,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-23 21:03:05,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238109336] [2024-10-23 21:03:05,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:03:05,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:03:05,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:03:05,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:03:05,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:03:05,301 INFO L87 Difference]: Start difference. First operand 11480 states and 12822 transitions. Second operand has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:06,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:03:06,279 INFO L93 Difference]: Finished difference Result 27205 states and 30324 transitions. [2024-10-23 21:03:06,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:03:06,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 0 states have call successors, (0), 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 337 [2024-10-23 21:03:06,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:03:06,293 INFO L225 Difference]: With dead ends: 27205 [2024-10-23 21:03:06,293 INFO L226 Difference]: Without dead ends: 15171 [2024-10-23 21:03:06,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:03:06,302 INFO L432 NwaCegarLoop]: 317 mSDtfsCounter, 311 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-23 21:03:06,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 351 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-23 21:03:06,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15171 states. [2024-10-23 21:03:06,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15171 to 10359. [2024-10-23 21:03:06,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10359 states, 10358 states have (on average 1.1105425757868315) internal successors, (11503), 10358 states have internal predecessors, (11503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:06,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10359 states to 10359 states and 11503 transitions. [2024-10-23 21:03:06,423 INFO L78 Accepts]: Start accepts. Automaton has 10359 states and 11503 transitions. Word has length 337 [2024-10-23 21:03:06,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:03:06,424 INFO L471 AbstractCegarLoop]: Abstraction has 10359 states and 11503 transitions. [2024-10-23 21:03:06,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:06,424 INFO L276 IsEmpty]: Start isEmpty. Operand 10359 states and 11503 transitions. [2024-10-23 21:03:06,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-10-23 21:03:06,431 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:03:06,431 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-23 21:03:06,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-23 21:03:06,432 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:03:06,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:03:06,432 INFO L85 PathProgramCache]: Analyzing trace with hash -861806150, now seen corresponding path program 1 times [2024-10-23 21:03:06,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:03:06,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700278534] [2024-10-23 21:03:06,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:03:06,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:03:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:03:06,814 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 259 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-10-23 21:03:06,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:03:06,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700278534] [2024-10-23 21:03:06,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700278534] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:03:06,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:03:06,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-23 21:03:06,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320728043] [2024-10-23 21:03:06,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:03:06,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:03:06,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:03:06,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:03:06,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:03:06,818 INFO L87 Difference]: Start difference. First operand 10359 states and 11503 transitions. Second operand has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:07,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:03:07,601 INFO L93 Difference]: Finished difference Result 22192 states and 24551 transitions. [2024-10-23 21:03:07,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:03:07,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 350 [2024-10-23 21:03:07,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:03:07,613 INFO L225 Difference]: With dead ends: 22192 [2024-10-23 21:03:07,613 INFO L226 Difference]: Without dead ends: 11834 [2024-10-23 21:03:07,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:03:07,621 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 327 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:03:07,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 54 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 876 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-23 21:03:07,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11834 states. [2024-10-23 21:03:07,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11834 to 9618. [2024-10-23 21:03:07,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9618 states, 9617 states have (on average 1.1073099719247166) internal successors, (10649), 9617 states have internal predecessors, (10649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:07,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9618 states to 9618 states and 10649 transitions. [2024-10-23 21:03:07,699 INFO L78 Accepts]: Start accepts. Automaton has 9618 states and 10649 transitions. Word has length 350 [2024-10-23 21:03:07,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:03:07,699 INFO L471 AbstractCegarLoop]: Abstraction has 9618 states and 10649 transitions. [2024-10-23 21:03:07,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:07,699 INFO L276 IsEmpty]: Start isEmpty. Operand 9618 states and 10649 transitions. [2024-10-23 21:03:07,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2024-10-23 21:03:07,707 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:03:07,707 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-23 21:03:07,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-23 21:03:07,707 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:03:07,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:03:07,708 INFO L85 PathProgramCache]: Analyzing trace with hash -684250499, now seen corresponding path program 1 times [2024-10-23 21:03:07,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:03:07,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223956366] [2024-10-23 21:03:07,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:03:07,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:03:07,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:03:07,969 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 368 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-10-23 21:03:07,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:03:07,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223956366] [2024-10-23 21:03:07,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223956366] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:03:07,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:03:07,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:03:07,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809465032] [2024-10-23 21:03:07,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:03:07,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:03:07,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:03:07,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:03:07,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:03:07,972 INFO L87 Difference]: Start difference. First operand 9618 states and 10649 transitions. Second operand has 4 states, 4 states have (on average 89.75) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:08,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:03:08,879 INFO L93 Difference]: Finished difference Result 26248 states and 29040 transitions. [2024-10-23 21:03:08,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:03:08,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 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 385 [2024-10-23 21:03:08,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:03:08,894 INFO L225 Difference]: With dead ends: 26248 [2024-10-23 21:03:08,894 INFO L226 Difference]: Without dead ends: 16631 [2024-10-23 21:03:08,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:03:08,902 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 201 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-23 21:03:08,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 68 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-23 21:03:08,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16631 states. [2024-10-23 21:03:09,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16631 to 15332. [2024-10-23 21:03:09,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15332 states, 15331 states have (on average 1.1049507533755136) internal successors, (16940), 15331 states have internal predecessors, (16940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:09,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15332 states to 15332 states and 16940 transitions. [2024-10-23 21:03:09,036 INFO L78 Accepts]: Start accepts. Automaton has 15332 states and 16940 transitions. Word has length 385 [2024-10-23 21:03:09,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:03:09,036 INFO L471 AbstractCegarLoop]: Abstraction has 15332 states and 16940 transitions. [2024-10-23 21:03:09,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:09,037 INFO L276 IsEmpty]: Start isEmpty. Operand 15332 states and 16940 transitions. [2024-10-23 21:03:09,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2024-10-23 21:03:09,052 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:03:09,052 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:03:09,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-23 21:03:09,052 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:03:09,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:03:09,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1767034500, now seen corresponding path program 1 times [2024-10-23 21:03:09,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:03:09,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598606214] [2024-10-23 21:03:09,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:03:09,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:03:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:03:09,420 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 627 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2024-10-23 21:03:09,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:03:09,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598606214] [2024-10-23 21:03:09,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598606214] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:03:09,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:03:09,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:03:09,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267436399] [2024-10-23 21:03:09,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:03:09,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:03:09,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:03:09,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:03:09,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:03:09,424 INFO L87 Difference]: Start difference. First operand 15332 states and 16940 transitions. Second operand has 4 states, 4 states have (on average 94.25) internal successors, (377), 3 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:10,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:03:10,268 INFO L93 Difference]: Finished difference Result 29566 states and 32663 transitions. [2024-10-23 21:03:10,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:03:10,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 94.25) internal successors, (377), 3 states have internal predecessors, (377), 0 states have call successors, (0), 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 530 [2024-10-23 21:03:10,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:03:10,283 INFO L225 Difference]: With dead ends: 29566 [2024-10-23 21:03:10,283 INFO L226 Difference]: Without dead ends: 16631 [2024-10-23 21:03:10,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:03:10,291 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 195 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-23 21:03:10,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 61 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-23 21:03:10,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16631 states. [2024-10-23 21:03:10,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16631 to 15148. [2024-10-23 21:03:10,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15148 states, 15147 states have (on average 1.1043110847032416) internal successors, (16727), 15147 states have internal predecessors, (16727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:10,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15148 states to 15148 states and 16727 transitions. [2024-10-23 21:03:10,419 INFO L78 Accepts]: Start accepts. Automaton has 15148 states and 16727 transitions. Word has length 530 [2024-10-23 21:03:10,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:03:10,420 INFO L471 AbstractCegarLoop]: Abstraction has 15148 states and 16727 transitions. [2024-10-23 21:03:10,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.25) internal successors, (377), 3 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:10,420 INFO L276 IsEmpty]: Start isEmpty. Operand 15148 states and 16727 transitions. [2024-10-23 21:03:10,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2024-10-23 21:03:10,433 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:03:10,433 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-23 21:03:10,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-23 21:03:10,434 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:03:10,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:03:10,434 INFO L85 PathProgramCache]: Analyzing trace with hash -695743898, now seen corresponding path program 1 times [2024-10-23 21:03:10,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:03:10,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341406042] [2024-10-23 21:03:10,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:03:10,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:03:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:03:10,773 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 484 proven. 0 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2024-10-23 21:03:10,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:03:10,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341406042] [2024-10-23 21:03:10,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341406042] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:03:10,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:03:10,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:03:10,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919058226] [2024-10-23 21:03:10,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:03:10,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:03:10,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:03:10,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:03:10,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:10,776 INFO L87 Difference]: Start difference. First operand 15148 states and 16727 transitions. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:11,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:03:11,433 INFO L93 Difference]: Finished difference Result 28099 states and 31044 transitions. [2024-10-23 21:03:11,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:03:11,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 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 544 [2024-10-23 21:03:11,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:03:11,452 INFO L225 Difference]: With dead ends: 28099 [2024-10-23 21:03:11,452 INFO L226 Difference]: Without dead ends: 15164 [2024-10-23 21:03:11,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:11,463 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 101 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-23 21:03:11,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 158 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-23 21:03:11,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15164 states. [2024-10-23 21:03:11,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15164 to 14780. [2024-10-23 21:03:11,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14780 states, 14779 states have (on average 1.0973678868664998) internal successors, (16218), 14779 states have internal predecessors, (16218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:11,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14780 states to 14780 states and 16218 transitions. [2024-10-23 21:03:11,650 INFO L78 Accepts]: Start accepts. Automaton has 14780 states and 16218 transitions. Word has length 544 [2024-10-23 21:03:11,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:03:11,651 INFO L471 AbstractCegarLoop]: Abstraction has 14780 states and 16218 transitions. [2024-10-23 21:03:11,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:11,651 INFO L276 IsEmpty]: Start isEmpty. Operand 14780 states and 16218 transitions. [2024-10-23 21:03:11,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2024-10-23 21:03:11,669 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:03:11,669 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-23 21:03:11,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-23 21:03:11,670 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:03:11,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:03:11,670 INFO L85 PathProgramCache]: Analyzing trace with hash -149796187, now seen corresponding path program 1 times [2024-10-23 21:03:11,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:03:11,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155605345] [2024-10-23 21:03:11,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:03:11,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:03:11,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:03:11,941 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 484 proven. 0 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2024-10-23 21:03:11,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:03:11,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155605345] [2024-10-23 21:03:11,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155605345] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:03:11,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:03:11,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:03:11,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727622947] [2024-10-23 21:03:11,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:03:11,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:03:11,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:03:11,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:03:11,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:11,943 INFO L87 Difference]: Start difference. First operand 14780 states and 16218 transitions. Second operand has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:12,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:03:12,470 INFO L93 Difference]: Finished difference Result 30659 states and 33606 transitions. [2024-10-23 21:03:12,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:03:12,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 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 545 [2024-10-23 21:03:12,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:03:12,472 INFO L225 Difference]: With dead ends: 30659 [2024-10-23 21:03:12,472 INFO L226 Difference]: Without dead ends: 0 [2024-10-23 21:03:12,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:12,482 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 100 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-23 21:03:12,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 125 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-23 21:03:12,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-23 21:03:12,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-23 21:03:12,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:12,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-23 21:03:12,484 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 545 [2024-10-23 21:03:12,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:03:12,484 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-23 21:03:12,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:12,484 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-23 21:03:12,484 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-23 21:03:12,487 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-23 21:03:12,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-23 21:03:12,491 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:03:12,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-23 21:03:20,527 WARN L286 SmtUtils]: Spent 8.03s on a formula simplification. DAG size of input: 493 DAG size of output: 609 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-10-23 21:03:22,561 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-23 21:03:22,584 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:03:22 BoogieIcfgContainer [2024-10-23 21:03:22,584 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-23 21:03:22,585 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-23 21:03:22,585 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-23 21:03:22,586 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-23 21:03:22,586 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:02:38" (3/4) ... [2024-10-23 21:03:22,588 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-23 21:03:22,607 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-23 21:03:22,608 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-23 21:03:22,609 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-23 21:03:22,610 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-23 21:03:22,798 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-23 21:03:22,798 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-23 21:03:22,799 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-23 21:03:22,799 INFO L158 Benchmark]: Toolchain (without parser) took 46752.21ms. Allocated memory was 161.5MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 117.9MB in the beginning and 922.9MB in the end (delta: -805.0MB). Peak memory consumption was 339.8MB. Max. memory is 16.1GB. [2024-10-23 21:03:22,799 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 161.5MB. Free memory is still 123.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-23 21:03:22,800 INFO L158 Benchmark]: CACSL2BoogieTranslator took 735.07ms. Allocated memory is still 161.5MB. Free memory was 117.9MB in the beginning and 70.5MB in the end (delta: 47.4MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-10-23 21:03:22,801 INFO L158 Benchmark]: Boogie Procedure Inliner took 148.53ms. Allocated memory is still 161.5MB. Free memory was 70.1MB in the beginning and 112.8MB in the end (delta: -42.8MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2024-10-23 21:03:22,801 INFO L158 Benchmark]: Boogie Preprocessor took 198.02ms. Allocated memory is still 161.5MB. Free memory was 112.8MB in the beginning and 87.7MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-23 21:03:22,801 INFO L158 Benchmark]: RCFGBuilder took 1830.09ms. Allocated memory was 161.5MB in the beginning and 211.8MB in the end (delta: 50.3MB). Free memory was 87.7MB in the beginning and 105.8MB in the end (delta: -18.1MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. [2024-10-23 21:03:22,803 INFO L158 Benchmark]: TraceAbstraction took 43618.83ms. Allocated memory was 211.8MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 104.7MB in the beginning and 939.7MB in the end (delta: -834.9MB). Peak memory consumption was 801.9MB. Max. memory is 16.1GB. [2024-10-23 21:03:22,803 INFO L158 Benchmark]: Witness Printer took 213.85ms. Allocated memory is still 1.3GB. Free memory was 939.7MB in the beginning and 922.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-23 21:03:22,805 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 161.5MB. Free memory is still 123.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 735.07ms. Allocated memory is still 161.5MB. Free memory was 117.9MB in the beginning and 70.5MB in the end (delta: 47.4MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 148.53ms. Allocated memory is still 161.5MB. Free memory was 70.1MB in the beginning and 112.8MB in the end (delta: -42.8MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 198.02ms. Allocated memory is still 161.5MB. Free memory was 112.8MB in the beginning and 87.7MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1830.09ms. Allocated memory was 161.5MB in the beginning and 211.8MB in the end (delta: 50.3MB). Free memory was 87.7MB in the beginning and 105.8MB in the end (delta: -18.1MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. * TraceAbstraction took 43618.83ms. Allocated memory was 211.8MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 104.7MB in the beginning and 939.7MB in the end (delta: -834.9MB). Peak memory consumption was 801.9MB. Max. memory is 16.1GB. * Witness Printer took 213.85ms. Allocated memory is still 1.3GB. Free memory was 939.7MB in the beginning and 922.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 103]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 221 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 33.5s, OverallIterations: 25, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 20.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4629 SdHoareTripleChecker+Valid, 18.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4629 mSDsluCounter, 5323 SdHoareTripleChecker+Invalid, 14.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 638 mSDsCounter, 2129 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17282 IncrementalHoareTripleChecker+Invalid, 19411 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2129 mSolverCounterUnsat, 4685 mSDtfsCounter, 17282 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 651 GetRequests, 611 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15332occurred in iteration=22, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.6s AutomataMinimizationTime, 25 MinimizatonAttempts, 26511 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 7.8s InterpolantComputationTime, 7096 NumberOfCodeBlocks, 7096 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 7069 ConstructedInterpolants, 0 QuantifiedInterpolants, 20298 SizeOfPredicates, 0 NumberOfNonLiveVariables, 817 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 27 InterpolantComputations, 25 PerfectInterpolantSequences, 6513/6626 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: (((((((((((((((((((((a29 <= 599999) && (a4 == 1)) && (a25 <= 9)) || ((((((long long) a23 + 43) <= 0) && (a29 <= 599999)) && (a4 == 1)) && (a25 == 10))) || ((((a29 <= 140) && (a4 == 0)) && (a23 <= 262)) && (a25 <= 9))) || ((((((long long) a23 + 43) <= 0) && (a4 == 0)) && (a29 <= 599999)) && (a25 <= 9))) || (((a25 == 11) && (a29 <= 599999)) && (a4 == 1))) || ((((307 <= a23) && (a29 <= 599999)) && (a4 == 1)) && (a25 == 10))) || (((((long long) a23 + 43) <= 0) && (a29 <= 275)) && (a4 == 1))) || (((a25 == 13) && (a29 <= 599999)) && (a4 == 1))) || (((a4 == 0) && (a25 == 10)) && (a29 <= 130))) || (((a29 <= 275) && (a25 == 12)) && (a4 == 0))) || ((((a25 == 13) && (a4 == 0)) && (((long long) 35913 + a29) <= 0)) && (a23 <= 137))) || (((a29 <= 244) && (a4 == 1)) && (a25 == 10))) || ((((((long long) a23 + 43) <= 0) && (a4 == 0)) && (a25 == 11)) && (a29 <= 599999))) || ((((a29 <= 140) && (a4 == 0)) && (a23 <= 262)) && (a25 == 10))) || (((a25 == 12) && (a29 <= 599999)) && (a4 == 1))) || (((a25 == 11) && (a4 == 1)) && (a23 <= 137))) || ((((a25 == 12) && (a4 == 0)) && (a29 <= 599999)) && (a23 <= 137))) || ((((a25 == 13) && (((long long) a23 + 43) <= 0)) && (a29 <= 275)) && (a4 == 0))) || ((((a29 <= 275) && (a4 == 0)) && (a25 == 11)) && (a23 <= 262))) RESULT: Ultimate proved your program to be correct! [2024-10-23 21:03:22,839 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE