./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label56.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem11_label56.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 77c0c06cf345be89a7bfdea692ab0197740d9f5ad98baaf39e02029ee2fea03a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 03:51:28,721 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 03:51:28,823 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 03:51:28,828 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 03:51:28,829 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 03:51:28,862 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 03:51:28,863 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 03:51:28,863 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 03:51:28,864 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 03:51:28,868 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 03:51:28,868 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 03:51:28,869 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 03:51:28,869 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 03:51:28,870 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 03:51:28,870 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 03:51:28,870 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 03:51:28,870 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 03:51:28,871 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 03:51:28,871 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 03:51:28,874 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 03:51:28,875 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 03:51:28,875 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 03:51:28,875 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 03:51:28,876 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 03:51:28,876 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 03:51:28,876 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 03:51:28,877 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 03:51:28,877 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 03:51:28,877 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 03:51:28,878 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 03:51:28,878 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 03:51:28,878 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 03:51:28,878 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:51:28,879 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 03:51:28,879 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 03:51:28,879 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 03:51:28,879 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 03:51:28,880 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 03:51:28,880 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 03:51:28,880 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 03:51:28,880 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 03:51:28,882 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 03:51:28,882 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77c0c06cf345be89a7bfdea692ab0197740d9f5ad98baaf39e02029ee2fea03a [2024-11-16 03:51:29,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 03:51:29,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 03:51:29,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 03:51:29,197 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 03:51:29,198 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 03:51:29,200 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label56.c [2024-11-16 03:51:30,711 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 03:51:31,010 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 03:51:31,014 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label56.c [2024-11-16 03:51:31,046 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efe2b9cd0/3b1445b1f1a14a378ac27b2ed3343305/FLAG31ff431d8 [2024-11-16 03:51:31,064 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efe2b9cd0/3b1445b1f1a14a378ac27b2ed3343305 [2024-11-16 03:51:31,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 03:51:31,070 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 03:51:31,072 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 03:51:31,072 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 03:51:31,078 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 03:51:31,079 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:51:31" (1/1) ... [2024-11-16 03:51:31,080 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@203638a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:31, skipping insertion in model container [2024-11-16 03:51:31,080 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:51:31" (1/1) ... [2024-11-16 03:51:31,139 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 03:51:31,401 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label56.c[5994,6007] [2024-11-16 03:51:31,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:51:31,620 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 03:51:31,645 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label56.c[5994,6007] [2024-11-16 03:51:31,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:51:31,820 INFO L204 MainTranslator]: Completed translation [2024-11-16 03:51:31,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:31 WrapperNode [2024-11-16 03:51:31,820 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 03:51:31,821 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 03:51:31,822 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 03:51:31,822 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 03:51:31,830 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:31" (1/1) ... [2024-11-16 03:51:31,862 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:31" (1/1) ... [2024-11-16 03:51:32,020 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 999 [2024-11-16 03:51:32,021 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 03:51:32,022 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 03:51:32,022 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 03:51:32,022 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 03:51:32,033 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:31" (1/1) ... [2024-11-16 03:51:32,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:31" (1/1) ... [2024-11-16 03:51:32,046 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:31" (1/1) ... [2024-11-16 03:51:32,103 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 03:51:32,103 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:31" (1/1) ... [2024-11-16 03:51:32,104 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:31" (1/1) ... [2024-11-16 03:51:32,150 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:31" (1/1) ... [2024-11-16 03:51:32,156 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:31" (1/1) ... [2024-11-16 03:51:32,165 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:31" (1/1) ... [2024-11-16 03:51:32,172 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:31" (1/1) ... [2024-11-16 03:51:32,184 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 03:51:32,185 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 03:51:32,186 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 03:51:32,186 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 03:51:32,187 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:31" (1/1) ... [2024-11-16 03:51:32,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:51:32,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:51:32,227 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 03:51:32,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 03:51:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 03:51:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 03:51:32,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 03:51:32,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 03:51:32,353 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 03:51:32,355 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 03:51:33,976 INFO L? ?]: Removed 129 outVars from TransFormulas that were not future-live. [2024-11-16 03:51:33,976 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 03:51:34,003 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 03:51:34,004 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 03:51:34,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:51:34 BoogieIcfgContainer [2024-11-16 03:51:34,004 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 03:51:34,006 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 03:51:34,006 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 03:51:34,010 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 03:51:34,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:51:31" (1/3) ... [2024-11-16 03:51:34,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b347a67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:51:34, skipping insertion in model container [2024-11-16 03:51:34,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:51:31" (2/3) ... [2024-11-16 03:51:34,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b347a67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:51:34, skipping insertion in model container [2024-11-16 03:51:34,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:51:34" (3/3) ... [2024-11-16 03:51:34,014 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label56.c [2024-11-16 03:51:34,033 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 03:51:34,034 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 03:51:34,113 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 03:51:34,120 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;@3ab7a49b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 03:51:34,121 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 03:51:34,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 286 states, 284 states have (on average 1.7077464788732395) internal successors, (485), 285 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:34,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-16 03:51:34,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:34,136 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:34,137 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:34,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:34,142 INFO L85 PathProgramCache]: Analyzing trace with hash -228789884, now seen corresponding path program 1 times [2024-11-16 03:51:34,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:34,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369038435] [2024-11-16 03:51:34,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:34,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:34,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:51:34,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:34,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369038435] [2024-11-16 03:51:34,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369038435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:34,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:34,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:51:34,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960618477] [2024-11-16 03:51:34,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:34,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:34,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:34,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:34,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:34,584 INFO L87 Difference]: Start difference. First operand has 286 states, 284 states have (on average 1.7077464788732395) internal successors, (485), 285 states have internal predecessors, (485), 0 states have call successors, (0), 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 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:35,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:35,765 INFO L93 Difference]: Finished difference Result 775 states and 1366 transitions. [2024-11-16 03:51:35,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:35,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2024-11-16 03:51:35,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:35,787 INFO L225 Difference]: With dead ends: 775 [2024-11-16 03:51:35,787 INFO L226 Difference]: Without dead ends: 425 [2024-11-16 03:51:35,792 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 [2024-11-16 03:51:35,797 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 199 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:35,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 168 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 03:51:35,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2024-11-16 03:51:35,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 415. [2024-11-16 03:51:35,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 414 states have (on average 1.5193236714975846) internal successors, (629), 414 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:35,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 629 transitions. [2024-11-16 03:51:35,877 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 629 transitions. Word has length 43 [2024-11-16 03:51:35,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:35,878 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 629 transitions. [2024-11-16 03:51:35,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:35,878 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 629 transitions. [2024-11-16 03:51:35,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-16 03:51:35,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:35,884 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:35,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 03:51:35,884 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:35,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:35,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1183920596, now seen corresponding path program 1 times [2024-11-16 03:51:35,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:35,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939702072] [2024-11-16 03:51:35,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:35,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:35,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:36,112 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:51:36,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:36,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939702072] [2024-11-16 03:51:36,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939702072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:36,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:36,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:51:36,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213178022] [2024-11-16 03:51:36,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:36,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:36,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:36,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:36,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:36,120 INFO L87 Difference]: Start difference. First operand 415 states and 629 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:36,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:36,954 INFO L93 Difference]: Finished difference Result 1207 states and 1837 transitions. [2024-11-16 03:51:36,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:36,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-11-16 03:51:36,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:36,959 INFO L225 Difference]: With dead ends: 1207 [2024-11-16 03:51:36,959 INFO L226 Difference]: Without dead ends: 794 [2024-11-16 03:51:36,961 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 [2024-11-16 03:51:36,962 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 156 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:36,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 180 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 03:51:36,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2024-11-16 03:51:36,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 794. [2024-11-16 03:51:36,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 793 states have (on average 1.3720050441361917) internal successors, (1088), 793 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) [2024-11-16 03:51:37,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1088 transitions. [2024-11-16 03:51:37,001 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1088 transitions. Word has length 110 [2024-11-16 03:51:37,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:37,001 INFO L471 AbstractCegarLoop]: Abstraction has 794 states and 1088 transitions. [2024-11-16 03:51:37,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:37,002 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1088 transitions. [2024-11-16 03:51:37,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-16 03:51:37,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:37,005 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:37,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 03:51:37,005 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:37,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:37,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1047752182, now seen corresponding path program 1 times [2024-11-16 03:51:37,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:37,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099002825] [2024-11-16 03:51:37,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:37,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:37,395 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:51:37,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:37,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099002825] [2024-11-16 03:51:37,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099002825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:37,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:37,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:51:37,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593302435] [2024-11-16 03:51:37,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:37,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:37,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:37,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:37,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:37,399 INFO L87 Difference]: Start difference. First operand 794 states and 1088 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:38,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:38,176 INFO L93 Difference]: Finished difference Result 2328 states and 3195 transitions. [2024-11-16 03:51:38,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:38,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2024-11-16 03:51:38,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:38,183 INFO L225 Difference]: With dead ends: 2328 [2024-11-16 03:51:38,183 INFO L226 Difference]: Without dead ends: 1536 [2024-11-16 03:51:38,185 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 [2024-11-16 03:51:38,186 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 119 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:38,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 197 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 03:51:38,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2024-11-16 03:51:38,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1535. [2024-11-16 03:51:38,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1534 states have (on average 1.2157757496740547) internal successors, (1865), 1534 states have internal predecessors, (1865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:38,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 1865 transitions. [2024-11-16 03:51:38,235 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 1865 transitions. Word has length 114 [2024-11-16 03:51:38,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:38,237 INFO L471 AbstractCegarLoop]: Abstraction has 1535 states and 1865 transitions. [2024-11-16 03:51:38,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:38,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 1865 transitions. [2024-11-16 03:51:38,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-16 03:51:38,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:38,244 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:38,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 03:51:38,245 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:38,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:38,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1759268767, now seen corresponding path program 1 times [2024-11-16 03:51:38,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:38,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280351011] [2024-11-16 03:51:38,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:38,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:38,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:38,508 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:51:38,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:38,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280351011] [2024-11-16 03:51:38,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280351011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:38,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:38,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:51:38,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543242575] [2024-11-16 03:51:38,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:38,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:38,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:38,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:38,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:38,516 INFO L87 Difference]: Start difference. First operand 1535 states and 1865 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) [2024-11-16 03:51:39,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:39,323 INFO L93 Difference]: Finished difference Result 3635 states and 4490 transitions. [2024-11-16 03:51:39,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:39,324 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 [2024-11-16 03:51:39,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:39,332 INFO L225 Difference]: With dead ends: 3635 [2024-11-16 03:51:39,332 INFO L226 Difference]: Without dead ends: 2287 [2024-11-16 03:51:39,335 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:39,336 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 164 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:39,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 341 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 03:51:39,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2287 states. [2024-11-16 03:51:39,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2287 to 1908. [2024-11-16 03:51:39,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1908 states, 1907 states have (on average 1.2144729942317776) internal successors, (2316), 1907 states have internal predecessors, (2316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:39,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1908 states to 1908 states and 2316 transitions. [2024-11-16 03:51:39,375 INFO L78 Accepts]: Start accepts. Automaton has 1908 states and 2316 transitions. Word has length 171 [2024-11-16 03:51:39,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:39,376 INFO L471 AbstractCegarLoop]: Abstraction has 1908 states and 2316 transitions. [2024-11-16 03:51:39,376 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) [2024-11-16 03:51:39,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1908 states and 2316 transitions. [2024-11-16 03:51:39,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-16 03:51:39,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:39,380 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:39,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 03:51:39,381 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:39,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:39,382 INFO L85 PathProgramCache]: Analyzing trace with hash -178488431, now seen corresponding path program 1 times [2024-11-16 03:51:39,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:39,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168840083] [2024-11-16 03:51:39,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:39,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:39,672 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-16 03:51:39,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:39,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168840083] [2024-11-16 03:51:39,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168840083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:39,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:39,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:51:39,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568824998] [2024-11-16 03:51:39,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:39,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:39,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:39,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:39,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:39,675 INFO L87 Difference]: Start difference. First operand 1908 states and 2316 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:40,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:40,512 INFO L93 Difference]: Finished difference Result 4555 states and 5630 transitions. [2024-11-16 03:51:40,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:40,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 227 [2024-11-16 03:51:40,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:40,523 INFO L225 Difference]: With dead ends: 4555 [2024-11-16 03:51:40,523 INFO L226 Difference]: Without dead ends: 2463 [2024-11-16 03:51:40,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:40,527 INFO L432 NwaCegarLoop]: 307 mSDtfsCounter, 181 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:40,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 329 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 03:51:40,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2463 states. [2024-11-16 03:51:40,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2463 to 2463. [2024-11-16 03:51:40,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2463 states, 2462 states have (on average 1.2323314378554022) internal successors, (3034), 2462 states have internal predecessors, (3034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:40,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2463 states to 2463 states and 3034 transitions. [2024-11-16 03:51:40,579 INFO L78 Accepts]: Start accepts. Automaton has 2463 states and 3034 transitions. Word has length 227 [2024-11-16 03:51:40,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:40,580 INFO L471 AbstractCegarLoop]: Abstraction has 2463 states and 3034 transitions. [2024-11-16 03:51:40,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:40,581 INFO L276 IsEmpty]: Start isEmpty. Operand 2463 states and 3034 transitions. [2024-11-16 03:51:40,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-16 03:51:40,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:40,585 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, 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] [2024-11-16 03:51:40,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 03:51:40,585 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:40,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:40,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1593691042, now seen corresponding path program 1 times [2024-11-16 03:51:40,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:40,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389696913] [2024-11-16 03:51:40,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:40,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:40,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:40,875 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-16 03:51:40,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:40,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389696913] [2024-11-16 03:51:40,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389696913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:40,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:40,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:51:40,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875757177] [2024-11-16 03:51:40,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:40,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:40,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:40,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:40,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:40,877 INFO L87 Difference]: Start difference. First operand 2463 states and 3034 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:41,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:41,745 INFO L93 Difference]: Finished difference Result 5668 states and 7072 transitions. [2024-11-16 03:51:41,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:41,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 254 [2024-11-16 03:51:41,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:41,757 INFO L225 Difference]: With dead ends: 5668 [2024-11-16 03:51:41,758 INFO L226 Difference]: Without dead ends: 3207 [2024-11-16 03:51:41,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:41,762 INFO L432 NwaCegarLoop]: 363 mSDtfsCounter, 156 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:41,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 387 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 03:51:41,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3207 states. [2024-11-16 03:51:41,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3207 to 3202. [2024-11-16 03:51:41,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3202 states, 3201 states have (on average 1.2133708216182444) internal successors, (3884), 3201 states have internal predecessors, (3884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:41,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3202 states to 3202 states and 3884 transitions. [2024-11-16 03:51:41,825 INFO L78 Accepts]: Start accepts. Automaton has 3202 states and 3884 transitions. Word has length 254 [2024-11-16 03:51:41,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:41,825 INFO L471 AbstractCegarLoop]: Abstraction has 3202 states and 3884 transitions. [2024-11-16 03:51:41,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:41,826 INFO L276 IsEmpty]: Start isEmpty. Operand 3202 states and 3884 transitions. [2024-11-16 03:51:41,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-16 03:51:41,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:41,832 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:41,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 03:51:41,833 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:41,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:41,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1313449421, now seen corresponding path program 1 times [2024-11-16 03:51:41,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:41,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134609229] [2024-11-16 03:51:41,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:41,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:41,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:42,292 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:51:42,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:42,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134609229] [2024-11-16 03:51:42,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134609229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:42,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:42,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:51:42,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649970660] [2024-11-16 03:51:42,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:42,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:51:42,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:42,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:51:42,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:51:42,297 INFO L87 Difference]: Start difference. First operand 3202 states and 3884 transitions. Second operand has 4 states, 4 states have (on average 69.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:43,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:43,709 INFO L93 Difference]: Finished difference Result 10486 states and 13015 transitions. [2024-11-16 03:51:43,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:51:43,710 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 69.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 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 276 [2024-11-16 03:51:43,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:43,734 INFO L225 Difference]: With dead ends: 10486 [2024-11-16 03:51:43,734 INFO L226 Difference]: Without dead ends: 7285 [2024-11-16 03:51:43,740 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 [2024-11-16 03:51:43,744 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 203 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:43,744 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 134 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 1074 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 03:51:43,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7285 states. [2024-11-16 03:51:43,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7285 to 7280. [2024-11-16 03:51:43,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7280 states, 7279 states have (on average 1.210193707926913) internal successors, (8809), 7279 states have internal predecessors, (8809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:43,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7280 states to 7280 states and 8809 transitions. [2024-11-16 03:51:43,870 INFO L78 Accepts]: Start accepts. Automaton has 7280 states and 8809 transitions. Word has length 276 [2024-11-16 03:51:43,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:43,871 INFO L471 AbstractCegarLoop]: Abstraction has 7280 states and 8809 transitions. [2024-11-16 03:51:43,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:43,871 INFO L276 IsEmpty]: Start isEmpty. Operand 7280 states and 8809 transitions. [2024-11-16 03:51:43,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2024-11-16 03:51:43,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:43,879 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:43,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 03:51:43,879 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:43,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:43,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1460434381, now seen corresponding path program 1 times [2024-11-16 03:51:43,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:43,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59802760] [2024-11-16 03:51:43,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:43,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:43,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:44,200 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:51:44,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:44,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59802760] [2024-11-16 03:51:44,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59802760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:44,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:44,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:51:44,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436082218] [2024-11-16 03:51:44,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:44,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:44,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:44,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:44,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:44,203 INFO L87 Difference]: Start difference. First operand 7280 states and 8809 transitions. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:45,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:45,042 INFO L93 Difference]: Finished difference Result 16989 states and 20725 transitions. [2024-11-16 03:51:45,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:45,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 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 319 [2024-11-16 03:51:45,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:45,087 INFO L225 Difference]: With dead ends: 16989 [2024-11-16 03:51:45,087 INFO L226 Difference]: Without dead ends: 10082 [2024-11-16 03:51:45,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:45,099 INFO L432 NwaCegarLoop]: 341 mSDtfsCounter, 85 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:45,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 374 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 03:51:45,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10082 states. [2024-11-16 03:51:45,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10082 to 10079. [2024-11-16 03:51:45,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10079 states, 10078 states have (on average 1.2132367533240722) internal successors, (12227), 10078 states have internal predecessors, (12227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:45,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10079 states to 10079 states and 12227 transitions. [2024-11-16 03:51:45,318 INFO L78 Accepts]: Start accepts. Automaton has 10079 states and 12227 transitions. Word has length 319 [2024-11-16 03:51:45,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:45,319 INFO L471 AbstractCegarLoop]: Abstraction has 10079 states and 12227 transitions. [2024-11-16 03:51:45,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:45,320 INFO L276 IsEmpty]: Start isEmpty. Operand 10079 states and 12227 transitions. [2024-11-16 03:51:45,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2024-11-16 03:51:45,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:45,329 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, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:45,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 03:51:45,330 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:45,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:45,330 INFO L85 PathProgramCache]: Analyzing trace with hash -2091704421, now seen corresponding path program 1 times [2024-11-16 03:51:45,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:45,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663757158] [2024-11-16 03:51:45,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:45,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:45,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:45,704 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-11-16 03:51:45,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:45,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663757158] [2024-11-16 03:51:45,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663757158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:45,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:45,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:51:45,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986663320] [2024-11-16 03:51:45,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:45,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:45,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:45,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:45,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:45,711 INFO L87 Difference]: Start difference. First operand 10079 states and 12227 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:46,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:46,635 INFO L93 Difference]: Finished difference Result 23862 states and 29324 transitions. [2024-11-16 03:51:46,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:46,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 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 327 [2024-11-16 03:51:46,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:46,680 INFO L225 Difference]: With dead ends: 23862 [2024-11-16 03:51:46,680 INFO L226 Difference]: Without dead ends: 14156 [2024-11-16 03:51:46,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:46,694 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 193 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:46,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 103 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 03:51:46,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14156 states. [2024-11-16 03:51:46,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14156 to 14150. [2024-11-16 03:51:46,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14150 states, 14149 states have (on average 1.2224892218531345) internal successors, (17297), 14149 states have internal predecessors, (17297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:46,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14150 states to 14150 states and 17297 transitions. [2024-11-16 03:51:46,900 INFO L78 Accepts]: Start accepts. Automaton has 14150 states and 17297 transitions. Word has length 327 [2024-11-16 03:51:46,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:46,900 INFO L471 AbstractCegarLoop]: Abstraction has 14150 states and 17297 transitions. [2024-11-16 03:51:46,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:46,901 INFO L276 IsEmpty]: Start isEmpty. Operand 14150 states and 17297 transitions. [2024-11-16 03:51:46,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2024-11-16 03:51:46,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:46,912 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:46,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 03:51:46,912 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:46,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:46,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1573440717, now seen corresponding path program 1 times [2024-11-16 03:51:46,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:46,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644712843] [2024-11-16 03:51:46,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:46,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:47,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:47,265 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-11-16 03:51:47,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:47,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644712843] [2024-11-16 03:51:47,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644712843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:47,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:47,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:51:47,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929243642] [2024-11-16 03:51:47,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:47,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:47,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:47,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:47,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:47,271 INFO L87 Difference]: Start difference. First operand 14150 states and 17297 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:48,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:48,138 INFO L93 Difference]: Finished difference Result 29969 states and 36911 transitions. [2024-11-16 03:51:48,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:48,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 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 333 [2024-11-16 03:51:48,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:48,226 INFO L225 Difference]: With dead ends: 29969 [2024-11-16 03:51:48,226 INFO L226 Difference]: Without dead ends: 16192 [2024-11-16 03:51:48,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:48,237 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 182 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:48,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 163 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 03:51:48,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16192 states. [2024-11-16 03:51:48,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16192 to 14150. [2024-11-16 03:51:48,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14150 states, 14149 states have (on average 1.2224892218531345) internal successors, (17297), 14149 states have internal predecessors, (17297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:48,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14150 states to 14150 states and 17297 transitions. [2024-11-16 03:51:48,425 INFO L78 Accepts]: Start accepts. Automaton has 14150 states and 17297 transitions. Word has length 333 [2024-11-16 03:51:48,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:48,426 INFO L471 AbstractCegarLoop]: Abstraction has 14150 states and 17297 transitions. [2024-11-16 03:51:48,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:48,426 INFO L276 IsEmpty]: Start isEmpty. Operand 14150 states and 17297 transitions. [2024-11-16 03:51:48,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2024-11-16 03:51:48,440 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:48,440 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, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:48,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 03:51:48,440 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:48,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:48,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1358096739, now seen corresponding path program 1 times [2024-11-16 03:51:48,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:48,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001840440] [2024-11-16 03:51:48,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:48,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:48,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:48,763 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 348 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-16 03:51:48,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:48,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001840440] [2024-11-16 03:51:48,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001840440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:48,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:48,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:51:48,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908083392] [2024-11-16 03:51:48,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:48,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:48,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:48,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:48,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:48,766 INFO L87 Difference]: Start difference. First operand 14150 states and 17297 transitions. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:49,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:49,491 INFO L93 Difference]: Finished difference Result 30908 states and 37936 transitions. [2024-11-16 03:51:49,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:49,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 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 344 [2024-11-16 03:51:49,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:49,522 INFO L225 Difference]: With dead ends: 30908 [2024-11-16 03:51:49,523 INFO L226 Difference]: Without dead ends: 17131 [2024-11-16 03:51:49,538 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:49,539 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 140 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:49,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 117 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:51:49,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17131 states. [2024-11-16 03:51:49,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17131 to 17127. [2024-11-16 03:51:49,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17127 states, 17126 states have (on average 1.2152283078360389) internal successors, (20812), 17126 states have internal predecessors, (20812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:49,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17127 states to 17127 states and 20812 transitions. [2024-11-16 03:51:49,739 INFO L78 Accepts]: Start accepts. Automaton has 17127 states and 20812 transitions. Word has length 344 [2024-11-16 03:51:49,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:49,739 INFO L471 AbstractCegarLoop]: Abstraction has 17127 states and 20812 transitions. [2024-11-16 03:51:49,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:49,740 INFO L276 IsEmpty]: Start isEmpty. Operand 17127 states and 20812 transitions. [2024-11-16 03:51:49,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-11-16 03:51:49,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:49,753 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, 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, 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] [2024-11-16 03:51:49,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 03:51:49,754 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:49,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:49,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1325097418, now seen corresponding path program 1 times [2024-11-16 03:51:49,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:49,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912633546] [2024-11-16 03:51:49,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:49,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:49,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:50,051 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-16 03:51:50,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:50,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912633546] [2024-11-16 03:51:50,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912633546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:50,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:50,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:51:50,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846805130] [2024-11-16 03:51:50,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:50,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:50,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:50,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:50,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:50,055 INFO L87 Difference]: Start difference. First operand 17127 states and 20812 transitions. Second operand has 3 states, 3 states have (on average 87.0) 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) [2024-11-16 03:51:50,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:50,744 INFO L93 Difference]: Finished difference Result 31814 states and 38741 transitions. [2024-11-16 03:51:50,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:50,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) 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 350 [2024-11-16 03:51:50,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:50,771 INFO L225 Difference]: With dead ends: 31814 [2024-11-16 03:51:50,771 INFO L226 Difference]: Without dead ends: 15060 [2024-11-16 03:51:50,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:50,786 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 138 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:50,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 148 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:51:50,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15060 states. [2024-11-16 03:51:50,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15060 to 12640. [2024-11-16 03:51:50,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12640 states, 12639 states have (on average 1.1489041854577102) internal successors, (14521), 12639 states have internal predecessors, (14521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:50,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12640 states to 12640 states and 14521 transitions. [2024-11-16 03:51:50,943 INFO L78 Accepts]: Start accepts. Automaton has 12640 states and 14521 transitions. Word has length 350 [2024-11-16 03:51:50,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:50,944 INFO L471 AbstractCegarLoop]: Abstraction has 12640 states and 14521 transitions. [2024-11-16 03:51:50,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) 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) [2024-11-16 03:51:50,944 INFO L276 IsEmpty]: Start isEmpty. Operand 12640 states and 14521 transitions. [2024-11-16 03:51:50,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2024-11-16 03:51:50,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:50,956 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, 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, 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] [2024-11-16 03:51:50,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 03:51:50,956 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:50,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:50,957 INFO L85 PathProgramCache]: Analyzing trace with hash -244064420, now seen corresponding path program 1 times [2024-11-16 03:51:50,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:50,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137305510] [2024-11-16 03:51:50,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:50,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:51,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:51,661 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 388 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:51:51,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:51,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137305510] [2024-11-16 03:51:51,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137305510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:51,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:51,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 03:51:51,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852286545] [2024-11-16 03:51:51,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:51,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:51:51,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:51,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:51:51,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:51:51,665 INFO L87 Difference]: Start difference. First operand 12640 states and 14521 transitions. Second operand has 4 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:52,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:52,769 INFO L93 Difference]: Finished difference Result 28619 states and 32873 transitions. [2024-11-16 03:51:52,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:51:52,770 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 0 states have call successors, (0), 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 354 [2024-11-16 03:51:52,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:52,796 INFO L225 Difference]: With dead ends: 28619 [2024-11-16 03:51:52,796 INFO L226 Difference]: Without dead ends: 16351 [2024-11-16 03:51:52,807 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 [2024-11-16 03:51:52,808 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 252 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1124 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 1124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:52,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 97 Invalid, 1316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 1124 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 03:51:52,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16351 states. [2024-11-16 03:51:52,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16351 to 13939. [2024-11-16 03:51:52,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13939 states, 13938 states have (on average 1.1383268761658774) internal successors, (15866), 13938 states have internal predecessors, (15866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:52,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13939 states to 13939 states and 15866 transitions. [2024-11-16 03:51:52,987 INFO L78 Accepts]: Start accepts. Automaton has 13939 states and 15866 transitions. Word has length 354 [2024-11-16 03:51:52,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:52,988 INFO L471 AbstractCegarLoop]: Abstraction has 13939 states and 15866 transitions. [2024-11-16 03:51:52,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:52,988 INFO L276 IsEmpty]: Start isEmpty. Operand 13939 states and 15866 transitions. [2024-11-16 03:51:53,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2024-11-16 03:51:53,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:53,004 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, 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, 2, 2, 2, 2, 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] [2024-11-16 03:51:53,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 03:51:53,004 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:53,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:53,005 INFO L85 PathProgramCache]: Analyzing trace with hash -365452426, now seen corresponding path program 1 times [2024-11-16 03:51:53,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:53,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841252735] [2024-11-16 03:51:53,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:53,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:53,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:53,543 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 378 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-16 03:51:53,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:53,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841252735] [2024-11-16 03:51:53,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841252735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:53,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:53,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:51:53,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475229025] [2024-11-16 03:51:53,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:53,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:51:53,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:53,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:51:53,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:51:53,545 INFO L87 Difference]: Start difference. First operand 13939 states and 15866 transitions. Second operand has 4 states, 4 states have (on average 89.5) internal successors, (358), 3 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:54,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:54,404 INFO L93 Difference]: Finished difference Result 29545 states and 33594 transitions. [2024-11-16 03:51:54,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:51:54,405 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.5) internal successors, (358), 3 states have internal predecessors, (358), 0 states have call successors, (0), 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 397 [2024-11-16 03:51:54,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:54,427 INFO L225 Difference]: With dead ends: 29545 [2024-11-16 03:51:54,427 INFO L226 Difference]: Without dead ends: 15238 [2024-11-16 03:51:54,439 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 [2024-11-16 03:51:54,440 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 208 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 1008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:54,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 172 Invalid, 1008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 03:51:54,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15238 states. [2024-11-16 03:51:54,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15238 to 15049. [2024-11-16 03:51:54,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15049 states, 15048 states have (on average 1.1240696438064859) internal successors, (16915), 15048 states have internal predecessors, (16915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:54,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15049 states to 15049 states and 16915 transitions. [2024-11-16 03:51:54,614 INFO L78 Accepts]: Start accepts. Automaton has 15049 states and 16915 transitions. Word has length 397 [2024-11-16 03:51:54,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:54,614 INFO L471 AbstractCegarLoop]: Abstraction has 15049 states and 16915 transitions. [2024-11-16 03:51:54,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.5) internal successors, (358), 3 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:54,615 INFO L276 IsEmpty]: Start isEmpty. Operand 15049 states and 16915 transitions. [2024-11-16 03:51:54,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2024-11-16 03:51:54,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:54,626 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:51:54,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 03:51:54,627 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:54,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:54,627 INFO L85 PathProgramCache]: Analyzing trace with hash 252470673, now seen corresponding path program 1 times [2024-11-16 03:51:54,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:54,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652890695] [2024-11-16 03:51:54,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:54,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:54,947 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2024-11-16 03:51:54,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:54,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652890695] [2024-11-16 03:51:54,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652890695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:54,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:54,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:51:54,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913495589] [2024-11-16 03:51:54,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:54,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:54,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:54,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:54,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:54,950 INFO L87 Difference]: Start difference. First operand 15049 states and 16915 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:55,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:55,689 INFO L93 Difference]: Finished difference Result 31575 states and 35508 transitions. [2024-11-16 03:51:55,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:55,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 399 [2024-11-16 03:51:55,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:55,717 INFO L225 Difference]: With dead ends: 31575 [2024-11-16 03:51:55,717 INFO L226 Difference]: Without dead ends: 16898 [2024-11-16 03:51:55,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:51:55,732 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 178 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:55,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 144 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:51:55,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16898 states. [2024-11-16 03:51:55,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16898 to 10604. [2024-11-16 03:51:55,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10604 states, 10603 states have (on average 1.1308120343299066) internal successors, (11990), 10603 states have internal predecessors, (11990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:55,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10604 states to 10604 states and 11990 transitions. [2024-11-16 03:51:55,895 INFO L78 Accepts]: Start accepts. Automaton has 10604 states and 11990 transitions. Word has length 399 [2024-11-16 03:51:55,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:55,895 INFO L471 AbstractCegarLoop]: Abstraction has 10604 states and 11990 transitions. [2024-11-16 03:51:55,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:55,897 INFO L276 IsEmpty]: Start isEmpty. Operand 10604 states and 11990 transitions. [2024-11-16 03:51:55,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2024-11-16 03:51:55,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:55,907 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, 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, 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] [2024-11-16 03:51:55,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 03:51:55,907 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:55,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:55,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1955061857, now seen corresponding path program 1 times [2024-11-16 03:51:55,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:55,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795703508] [2024-11-16 03:51:55,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:55,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:55,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:56,301 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 359 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-16 03:51:56,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:56,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795703508] [2024-11-16 03:51:56,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795703508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:56,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:51:56,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:51:56,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825951070] [2024-11-16 03:51:56,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:56,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:51:56,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:56,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:51:56,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:51:56,306 INFO L87 Difference]: Start difference. First operand 10604 states and 11990 transitions. Second operand has 4 states, 4 states have (on average 76.75) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:57,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:57,281 INFO L93 Difference]: Finished difference Result 27515 states and 31050 transitions. [2024-11-16 03:51:57,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:51:57,282 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 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 418 [2024-11-16 03:51:57,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:57,304 INFO L225 Difference]: With dead ends: 27515 [2024-11-16 03:51:57,305 INFO L226 Difference]: Without dead ends: 17283 [2024-11-16 03:51:57,316 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 [2024-11-16 03:51:57,317 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 208 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 1129 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:57,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 88 Invalid, 1212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1129 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 03:51:57,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17283 states. [2024-11-16 03:51:57,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17283 to 17097. [2024-11-16 03:51:57,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17097 states, 17096 states have (on average 1.122250818905007) internal successors, (19186), 17096 states have internal predecessors, (19186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:57,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17097 states to 17097 states and 19186 transitions. [2024-11-16 03:51:57,494 INFO L78 Accepts]: Start accepts. Automaton has 17097 states and 19186 transitions. Word has length 418 [2024-11-16 03:51:57,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:57,494 INFO L471 AbstractCegarLoop]: Abstraction has 17097 states and 19186 transitions. [2024-11-16 03:51:57,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:57,495 INFO L276 IsEmpty]: Start isEmpty. Operand 17097 states and 19186 transitions. [2024-11-16 03:51:57,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2024-11-16 03:51:57,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:57,517 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:57,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 03:51:57,517 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:57,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:57,518 INFO L85 PathProgramCache]: Analyzing trace with hash 2129198867, now seen corresponding path program 1 times [2024-11-16 03:51:57,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:57,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295871920] [2024-11-16 03:51:57,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:57,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:51:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:58,359 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 463 proven. 34 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2024-11-16 03:51:58,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:51:58,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295871920] [2024-11-16 03:51:58,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295871920] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:51:58,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139974466] [2024-11-16 03:51:58,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:58,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:51:58,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:51:58,362 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:51:58,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 03:51:58,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:51:58,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:51:58,581 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:51:58,784 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 497 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2024-11-16 03:51:58,784 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:51:58,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139974466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:51:58,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:51:58,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-16 03:51:58,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087047048] [2024-11-16 03:51:58,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:51:58,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:51:58,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:51:58,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:51:58,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-16 03:51:58,786 INFO L87 Difference]: Start difference. First operand 17097 states and 19186 transitions. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:59,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:51:59,514 INFO L93 Difference]: Finished difference Result 34390 states and 38666 transitions. [2024-11-16 03:51:59,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:51:59,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 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 516 [2024-11-16 03:51:59,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:51:59,531 INFO L225 Difference]: With dead ends: 34390 [2024-11-16 03:51:59,532 INFO L226 Difference]: Without dead ends: 17665 [2024-11-16 03:51:59,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 520 GetRequests, 515 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-16 03:51:59,544 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 88 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:51:59,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 78 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:51:59,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17665 states. [2024-11-16 03:51:59,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17665 to 17652. [2024-11-16 03:51:59,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17652 states, 17651 states have (on average 1.121239589824939) internal successors, (19791), 17651 states have internal predecessors, (19791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:59,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17652 states to 17652 states and 19791 transitions. [2024-11-16 03:51:59,765 INFO L78 Accepts]: Start accepts. Automaton has 17652 states and 19791 transitions. Word has length 516 [2024-11-16 03:51:59,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:51:59,765 INFO L471 AbstractCegarLoop]: Abstraction has 17652 states and 19791 transitions. [2024-11-16 03:51:59,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:51:59,766 INFO L276 IsEmpty]: Start isEmpty. Operand 17652 states and 19791 transitions. [2024-11-16 03:51:59,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2024-11-16 03:51:59,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:51:59,778 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:51:59,794 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 03:51:59,978 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,SelfDestructingSolverStorable16 [2024-11-16 03:51:59,979 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:51:59,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:51:59,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1030651790, now seen corresponding path program 1 times [2024-11-16 03:51:59,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:51:59,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784329487] [2024-11-16 03:51:59,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:51:59,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:00,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:00,443 INFO L134 CoverageAnalysis]: Checked inductivity of 783 backedges. 661 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-16 03:52:00,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:00,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784329487] [2024-11-16 03:52:00,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784329487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:00,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:00,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:00,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042766456] [2024-11-16 03:52:00,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:00,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:52:00,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:00,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:52:00,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:52:00,446 INFO L87 Difference]: Start difference. First operand 17652 states and 19791 transitions. Second operand has 4 states, 4 states have (on average 99.25) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:01,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:01,501 INFO L93 Difference]: Finished difference Result 41616 states and 46702 transitions. [2024-11-16 03:52:01,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:52:01,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 99.25) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 517 [2024-11-16 03:52:01,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:01,529 INFO L225 Difference]: With dead ends: 41616 [2024-11-16 03:52:01,529 INFO L226 Difference]: Without dead ends: 23966 [2024-11-16 03:52:01,546 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 [2024-11-16 03:52:01,546 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 240 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:01,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 85 Invalid, 1165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1050 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 03:52:01,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23966 states. [2024-11-16 03:52:01,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23966 to 18028. [2024-11-16 03:52:01,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18028 states, 18027 states have (on average 1.1232040827647418) internal successors, (20248), 18027 states have internal predecessors, (20248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:01,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18028 states to 18028 states and 20248 transitions. [2024-11-16 03:52:01,817 INFO L78 Accepts]: Start accepts. Automaton has 18028 states and 20248 transitions. Word has length 517 [2024-11-16 03:52:01,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:01,818 INFO L471 AbstractCegarLoop]: Abstraction has 18028 states and 20248 transitions. [2024-11-16 03:52:01,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.25) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:01,818 INFO L276 IsEmpty]: Start isEmpty. Operand 18028 states and 20248 transitions. [2024-11-16 03:52:01,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2024-11-16 03:52:01,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:01,836 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, 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, 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, 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] [2024-11-16 03:52:01,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 03:52:01,836 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:01,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:01,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1606483738, now seen corresponding path program 1 times [2024-11-16 03:52:01,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:01,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736458265] [2024-11-16 03:52:01,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:01,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:01,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:02,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1206 backedges. 888 proven. 0 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-11-16 03:52:02,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:02,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736458265] [2024-11-16 03:52:02,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736458265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:02,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:02,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:02,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323997683] [2024-11-16 03:52:02,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:02,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:02,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:02,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:02,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:02,349 INFO L87 Difference]: Start difference. First operand 18028 states and 20248 transitions. Second operand has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:02,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:02,967 INFO L93 Difference]: Finished difference Result 37545 states and 42136 transitions. [2024-11-16 03:52:02,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:02,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 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 614 [2024-11-16 03:52:02,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:02,988 INFO L225 Difference]: With dead ends: 37545 [2024-11-16 03:52:02,989 INFO L226 Difference]: Without dead ends: 19889 [2024-11-16 03:52:03,000 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:03,001 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 138 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:03,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 131 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:52:03,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19889 states. [2024-11-16 03:52:03,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19889 to 17843. [2024-11-16 03:52:03,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17843 states, 17842 states have (on average 1.1232485147405) internal successors, (20041), 17842 states have internal predecessors, (20041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:03,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17843 states to 17843 states and 20041 transitions. [2024-11-16 03:52:03,163 INFO L78 Accepts]: Start accepts. Automaton has 17843 states and 20041 transitions. Word has length 614 [2024-11-16 03:52:03,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:03,163 INFO L471 AbstractCegarLoop]: Abstraction has 17843 states and 20041 transitions. [2024-11-16 03:52:03,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:03,163 INFO L276 IsEmpty]: Start isEmpty. Operand 17843 states and 20041 transitions. [2024-11-16 03:52:03,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2024-11-16 03:52:03,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:03,178 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:03,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 03:52:03,178 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:03,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:03,179 INFO L85 PathProgramCache]: Analyzing trace with hash -704310464, now seen corresponding path program 1 times [2024-11-16 03:52:03,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:03,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754395016] [2024-11-16 03:52:03,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:03,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:03,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:03,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1522 backedges. 704 proven. 0 refuted. 0 times theorem prover too weak. 818 trivial. 0 not checked. [2024-11-16 03:52:03,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:03,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754395016] [2024-11-16 03:52:03,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754395016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:03,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:03,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:03,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930866058] [2024-11-16 03:52:03,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:03,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:03,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:03,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:03,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:03,465 INFO L87 Difference]: Start difference. First operand 17843 states and 20041 transitions. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:04,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:04,077 INFO L93 Difference]: Finished difference Result 37163 states and 41786 transitions. [2024-11-16 03:52:04,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:04,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 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 643 [2024-11-16 03:52:04,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:04,101 INFO L225 Difference]: With dead ends: 37163 [2024-11-16 03:52:04,102 INFO L226 Difference]: Without dead ends: 19692 [2024-11-16 03:52:04,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:04,115 INFO L432 NwaCegarLoop]: 328 mSDtfsCounter, 65 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:04,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 352 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:52:04,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19692 states. [2024-11-16 03:52:04,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19692 to 16348. [2024-11-16 03:52:04,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16348 states, 16347 states have (on average 1.1191655961338471) internal successors, (18295), 16347 states have internal predecessors, (18295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:04,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16348 states to 16348 states and 18295 transitions. [2024-11-16 03:52:04,257 INFO L78 Accepts]: Start accepts. Automaton has 16348 states and 18295 transitions. Word has length 643 [2024-11-16 03:52:04,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:04,257 INFO L471 AbstractCegarLoop]: Abstraction has 16348 states and 18295 transitions. [2024-11-16 03:52:04,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:04,258 INFO L276 IsEmpty]: Start isEmpty. Operand 16348 states and 18295 transitions. [2024-11-16 03:52:04,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 670 [2024-11-16 03:52:04,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:04,274 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, 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, 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, 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] [2024-11-16 03:52:04,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 03:52:04,275 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:04,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:04,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1810590345, now seen corresponding path program 1 times [2024-11-16 03:52:04,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:04,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054838094] [2024-11-16 03:52:04,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:04,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:04,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:05,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1264 backedges. 846 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2024-11-16 03:52:05,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:05,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054838094] [2024-11-16 03:52:05,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054838094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:05,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:05,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 03:52:05,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326927795] [2024-11-16 03:52:05,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:05,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 03:52:05,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:05,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 03:52:05,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 03:52:05,503 INFO L87 Difference]: Start difference. First operand 16348 states and 18295 transitions. Second operand has 7 states, 7 states have (on average 59.57142857142857) internal successors, (417), 6 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:06,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:06,809 INFO L93 Difference]: Finished difference Result 39182 states and 43751 transitions. [2024-11-16 03:52:06,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 03:52:06,809 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 59.57142857142857) internal successors, (417), 6 states have internal predecessors, (417), 0 states have call successors, (0), 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 669 [2024-11-16 03:52:06,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:06,838 INFO L225 Difference]: With dead ends: 39182 [2024-11-16 03:52:06,838 INFO L226 Difference]: Without dead ends: 23206 [2024-11-16 03:52:06,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-16 03:52:06,852 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 237 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 1835 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 1865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:06,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 208 Invalid, 1865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1835 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 03:52:06,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23206 states. [2024-11-16 03:52:07,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23206 to 23198. [2024-11-16 03:52:07,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23198 states, 23197 states have (on average 1.1130318575677889) internal successors, (25819), 23197 states have internal predecessors, (25819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:07,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23198 states to 23198 states and 25819 transitions. [2024-11-16 03:52:07,054 INFO L78 Accepts]: Start accepts. Automaton has 23198 states and 25819 transitions. Word has length 669 [2024-11-16 03:52:07,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:07,054 INFO L471 AbstractCegarLoop]: Abstraction has 23198 states and 25819 transitions. [2024-11-16 03:52:07,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 59.57142857142857) internal successors, (417), 6 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:07,055 INFO L276 IsEmpty]: Start isEmpty. Operand 23198 states and 25819 transitions. [2024-11-16 03:52:07,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 679 [2024-11-16 03:52:07,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:07,078 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:07,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 03:52:07,078 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:07,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:07,079 INFO L85 PathProgramCache]: Analyzing trace with hash -912600349, now seen corresponding path program 1 times [2024-11-16 03:52:07,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:07,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117180740] [2024-11-16 03:52:07,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:07,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:07,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:07,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1579 backedges. 1134 proven. 0 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2024-11-16 03:52:07,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:07,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117180740] [2024-11-16 03:52:07,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117180740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:07,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:07,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:07,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393692751] [2024-11-16 03:52:07,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:07,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:07,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:07,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:07,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:07,802 INFO L87 Difference]: Start difference. First operand 23198 states and 25819 transitions. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:08,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:08,528 INFO L93 Difference]: Finished difference Result 48428 states and 53906 transitions. [2024-11-16 03:52:08,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:08,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 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 678 [2024-11-16 03:52:08,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:08,557 INFO L225 Difference]: With dead ends: 48428 [2024-11-16 03:52:08,557 INFO L226 Difference]: Without dead ends: 25602 [2024-11-16 03:52:08,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:08,573 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 124 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:08,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 322 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:52:08,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25602 states. [2024-11-16 03:52:08,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25602 to 15792. [2024-11-16 03:52:08,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15792 states, 15791 states have (on average 1.1128490912545121) internal successors, (17573), 15791 states have internal predecessors, (17573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:08,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15792 states to 15792 states and 17573 transitions. [2024-11-16 03:52:08,776 INFO L78 Accepts]: Start accepts. Automaton has 15792 states and 17573 transitions. Word has length 678 [2024-11-16 03:52:08,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:08,777 INFO L471 AbstractCegarLoop]: Abstraction has 15792 states and 17573 transitions. [2024-11-16 03:52:08,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:08,777 INFO L276 IsEmpty]: Start isEmpty. Operand 15792 states and 17573 transitions. [2024-11-16 03:52:08,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 680 [2024-11-16 03:52:08,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:08,790 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, 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, 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, 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] [2024-11-16 03:52:08,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 03:52:08,790 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:08,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:08,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1841814302, now seen corresponding path program 1 times [2024-11-16 03:52:08,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:08,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375671147] [2024-11-16 03:52:08,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:08,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:08,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:10,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1294 backedges. 868 proven. 8 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2024-11-16 03:52:10,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:10,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375671147] [2024-11-16 03:52:10,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375671147] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:52:10,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311993193] [2024-11-16 03:52:10,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:10,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:52:10,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:52:10,149 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:52:10,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 03:52:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:10,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-16 03:52:10,344 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:52:11,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1294 backedges. 754 proven. 122 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2024-11-16 03:52:11,575 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 03:52:14,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1294 backedges. 754 proven. 122 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2024-11-16 03:52:14,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311993193] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 03:52:14,752 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 03:52:14,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 10 [2024-11-16 03:52:14,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245642655] [2024-11-16 03:52:14,752 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 03:52:14,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 03:52:14,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:14,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 03:52:14,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-16 03:52:14,756 INFO L87 Difference]: Start difference. First operand 15792 states and 17573 transitions. Second operand has 11 states, 11 states have (on average 90.81818181818181) internal successors, (999), 10 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:18,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:18,164 INFO L93 Difference]: Finished difference Result 38255 states and 42325 transitions. [2024-11-16 03:52:18,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-16 03:52:18,165 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 90.81818181818181) internal successors, (999), 10 states have internal predecessors, (999), 0 states have call successors, (0), 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 679 [2024-11-16 03:52:18,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:18,185 INFO L225 Difference]: With dead ends: 38255 [2024-11-16 03:52:18,185 INFO L226 Difference]: Without dead ends: 22647 [2024-11-16 03:52:18,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1380 GetRequests, 1355 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=227, Invalid=475, Unknown=0, NotChecked=0, Total=702 [2024-11-16 03:52:18,197 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 1397 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 4220 mSolverCounterSat, 564 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1397 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 4784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 564 IncrementalHoareTripleChecker+Valid, 4220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:18,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1397 Valid, 209 Invalid, 4784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [564 Valid, 4220 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-16 03:52:18,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22647 states. [2024-11-16 03:52:18,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22647 to 14121. [2024-11-16 03:52:18,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14121 states, 14120 states have (on average 1.0781869688385268) internal successors, (15224), 14120 states have internal predecessors, (15224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:18,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14121 states to 14121 states and 15224 transitions. [2024-11-16 03:52:18,348 INFO L78 Accepts]: Start accepts. Automaton has 14121 states and 15224 transitions. Word has length 679 [2024-11-16 03:52:18,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:18,349 INFO L471 AbstractCegarLoop]: Abstraction has 14121 states and 15224 transitions. [2024-11-16 03:52:18,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 90.81818181818181) internal successors, (999), 10 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:18,349 INFO L276 IsEmpty]: Start isEmpty. Operand 14121 states and 15224 transitions. [2024-11-16 03:52:18,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2024-11-16 03:52:18,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:18,358 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, 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, 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, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:18,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 03:52:18,558 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,SelfDestructingSolverStorable22 [2024-11-16 03:52:18,559 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:18,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:18,559 INFO L85 PathProgramCache]: Analyzing trace with hash -2042319841, now seen corresponding path program 1 times [2024-11-16 03:52:18,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:18,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50046765] [2024-11-16 03:52:18,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:18,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:19,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1451 backedges. 1050 proven. 64 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2024-11-16 03:52:19,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:19,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50046765] [2024-11-16 03:52:19,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50046765] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:52:19,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048397643] [2024-11-16 03:52:19,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:19,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:52:19,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:52:19,360 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:52:19,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 03:52:19,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:19,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 880 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:52:19,576 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:52:19,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1451 backedges. 1114 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2024-11-16 03:52:19,718 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:52:19,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048397643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:19,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:52:19,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 03:52:19,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156711701] [2024-11-16 03:52:19,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:19,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:19,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:19,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:19,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:52:19,721 INFO L87 Difference]: Start difference. First operand 14121 states and 15224 transitions. Second operand has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:20,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:20,243 INFO L93 Difference]: Finished difference Result 28621 states and 30856 transitions. [2024-11-16 03:52:20,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:20,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 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 694 [2024-11-16 03:52:20,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:20,256 INFO L225 Difference]: With dead ends: 28621 [2024-11-16 03:52:20,256 INFO L226 Difference]: Without dead ends: 14872 [2024-11-16 03:52:20,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 697 GetRequests, 693 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:52:20,264 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 78 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:20,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 343 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:52:20,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14872 states. [2024-11-16 03:52:20,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14872 to 13936. [2024-11-16 03:52:20,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13936 states, 13935 states have (on average 1.0767850735557947) internal successors, (15005), 13935 states have internal predecessors, (15005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:20,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13936 states to 13936 states and 15005 transitions. [2024-11-16 03:52:20,378 INFO L78 Accepts]: Start accepts. Automaton has 13936 states and 15005 transitions. Word has length 694 [2024-11-16 03:52:20,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:20,379 INFO L471 AbstractCegarLoop]: Abstraction has 13936 states and 15005 transitions. [2024-11-16 03:52:20,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:20,379 INFO L276 IsEmpty]: Start isEmpty. Operand 13936 states and 15005 transitions. [2024-11-16 03:52:20,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2024-11-16 03:52:20,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:20,388 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:20,401 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 03:52:20,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:52:20,589 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:20,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:20,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1434302945, now seen corresponding path program 1 times [2024-11-16 03:52:20,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:20,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618592313] [2024-11-16 03:52:20,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:20,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:20,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:21,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1628 backedges. 1171 proven. 0 refuted. 0 times theorem prover too weak. 457 trivial. 0 not checked. [2024-11-16 03:52:21,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:21,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618592313] [2024-11-16 03:52:21,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618592313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:21,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:21,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:21,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58911765] [2024-11-16 03:52:21,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:21,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:21,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:21,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:21,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:21,156 INFO L87 Difference]: Start difference. First operand 13936 states and 15005 transitions. Second operand has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 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) [2024-11-16 03:52:21,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:21,672 INFO L93 Difference]: Finished difference Result 29178 states and 31423 transitions. [2024-11-16 03:52:21,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:21,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 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) Word has length 702 [2024-11-16 03:52:21,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:21,685 INFO L225 Difference]: With dead ends: 29178 [2024-11-16 03:52:21,685 INFO L226 Difference]: Without dead ends: 15614 [2024-11-16 03:52:21,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:21,694 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 134 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:21,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 111 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 03:52:21,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15614 states. [2024-11-16 03:52:21,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15614 to 13936. [2024-11-16 03:52:21,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13936 states, 13935 states have (on average 1.0767850735557947) internal successors, (15005), 13935 states have internal predecessors, (15005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:21,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13936 states to 13936 states and 15005 transitions. [2024-11-16 03:52:21,815 INFO L78 Accepts]: Start accepts. Automaton has 13936 states and 15005 transitions. Word has length 702 [2024-11-16 03:52:21,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:21,815 INFO L471 AbstractCegarLoop]: Abstraction has 13936 states and 15005 transitions. [2024-11-16 03:52:21,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 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) [2024-11-16 03:52:21,816 INFO L276 IsEmpty]: Start isEmpty. Operand 13936 states and 15005 transitions. [2024-11-16 03:52:21,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 739 [2024-11-16 03:52:21,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:21,825 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:21,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 03:52:21,825 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:21,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:21,826 INFO L85 PathProgramCache]: Analyzing trace with hash 861566210, now seen corresponding path program 1 times [2024-11-16 03:52:21,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:21,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132722851] [2024-11-16 03:52:21,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:21,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:22,723 INFO L134 CoverageAnalysis]: Checked inductivity of 1788 backedges. 1370 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2024-11-16 03:52:22,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:22,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132722851] [2024-11-16 03:52:22,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132722851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:22,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:22,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 03:52:22,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482730831] [2024-11-16 03:52:22,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:22,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:52:22,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:22,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:52:22,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:52:22,726 INFO L87 Difference]: Start difference. First operand 13936 states and 15005 transitions. Second operand has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:23,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:23,637 INFO L93 Difference]: Finished difference Result 31037 states and 33408 transitions. [2024-11-16 03:52:23,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:52:23,638 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 0 states have call successors, (0), 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 738 [2024-11-16 03:52:23,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:23,655 INFO L225 Difference]: With dead ends: 31037 [2024-11-16 03:52:23,655 INFO L226 Difference]: Without dead ends: 17288 [2024-11-16 03:52:23,665 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 [2024-11-16 03:52:23,665 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 184 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:23,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 163 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1090 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 03:52:23,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17288 states. [2024-11-16 03:52:23,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17288 to 15793. [2024-11-16 03:52:23,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15793 states, 15792 states have (on average 1.0721251266464031) internal successors, (16931), 15792 states have internal predecessors, (16931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:23,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15793 states to 15793 states and 16931 transitions. [2024-11-16 03:52:23,816 INFO L78 Accepts]: Start accepts. Automaton has 15793 states and 16931 transitions. Word has length 738 [2024-11-16 03:52:23,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:23,817 INFO L471 AbstractCegarLoop]: Abstraction has 15793 states and 16931 transitions. [2024-11-16 03:52:23,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:23,817 INFO L276 IsEmpty]: Start isEmpty. Operand 15793 states and 16931 transitions. [2024-11-16 03:52:23,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 759 [2024-11-16 03:52:23,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:23,829 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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, 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] [2024-11-16 03:52:23,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 03:52:23,829 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:23,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:23,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1791985339, now seen corresponding path program 1 times [2024-11-16 03:52:23,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:23,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703278623] [2024-11-16 03:52:23,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:23,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:24,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1772 backedges. 1307 proven. 0 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2024-11-16 03:52:24,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:24,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703278623] [2024-11-16 03:52:24,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703278623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:24,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:24,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:24,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904045334] [2024-11-16 03:52:24,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:24,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:24,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:24,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:24,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:24,325 INFO L87 Difference]: Start difference. First operand 15793 states and 16931 transitions. Second operand has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:24,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:24,885 INFO L93 Difference]: Finished difference Result 30655 states and 32865 transitions. [2024-11-16 03:52:24,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:24,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 758 [2024-11-16 03:52:24,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:24,901 INFO L225 Difference]: With dead ends: 30655 [2024-11-16 03:52:24,901 INFO L226 Difference]: Without dead ends: 15234 [2024-11-16 03:52:24,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:24,911 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 71 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:24,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 276 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:52:24,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15234 states. [2024-11-16 03:52:25,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15234 to 13195. [2024-11-16 03:52:25,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13195 states, 13194 states have (on average 1.066772775504017) internal successors, (14075), 13194 states have internal predecessors, (14075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:25,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13195 states to 13195 states and 14075 transitions. [2024-11-16 03:52:25,047 INFO L78 Accepts]: Start accepts. Automaton has 13195 states and 14075 transitions. Word has length 758 [2024-11-16 03:52:25,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:25,047 INFO L471 AbstractCegarLoop]: Abstraction has 13195 states and 14075 transitions. [2024-11-16 03:52:25,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:25,048 INFO L276 IsEmpty]: Start isEmpty. Operand 13195 states and 14075 transitions. [2024-11-16 03:52:25,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 820 [2024-11-16 03:52:25,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:25,059 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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, 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] [2024-11-16 03:52:25,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 03:52:25,059 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:25,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:25,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1365253316, now seen corresponding path program 1 times [2024-11-16 03:52:25,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:25,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365232995] [2024-11-16 03:52:25,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:25,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:25,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1885 backedges. 1313 proven. 0 refuted. 0 times theorem prover too weak. 572 trivial. 0 not checked. [2024-11-16 03:52:25,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:25,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365232995] [2024-11-16 03:52:25,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365232995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:25,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:25,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:25,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638597947] [2024-11-16 03:52:25,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:25,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:25,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:25,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:25,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:25,461 INFO L87 Difference]: Start difference. First operand 13195 states and 14075 transitions. Second operand has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:25,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:25,964 INFO L93 Difference]: Finished difference Result 26573 states and 28365 transitions. [2024-11-16 03:52:25,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:25,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 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 819 [2024-11-16 03:52:25,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:25,978 INFO L225 Difference]: With dead ends: 26573 [2024-11-16 03:52:25,978 INFO L226 Difference]: Without dead ends: 13935 [2024-11-16 03:52:25,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:25,986 INFO L432 NwaCegarLoop]: 330 mSDtfsCounter, 108 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:25,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 357 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 03:52:25,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13935 states. [2024-11-16 03:52:26,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13935 to 13565. [2024-11-16 03:52:26,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13565 states, 13564 states have (on average 1.0657623120023592) internal successors, (14456), 13564 states have internal predecessors, (14456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:26,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13565 states to 13565 states and 14456 transitions. [2024-11-16 03:52:26,104 INFO L78 Accepts]: Start accepts. Automaton has 13565 states and 14456 transitions. Word has length 819 [2024-11-16 03:52:26,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:26,105 INFO L471 AbstractCegarLoop]: Abstraction has 13565 states and 14456 transitions. [2024-11-16 03:52:26,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:26,105 INFO L276 IsEmpty]: Start isEmpty. Operand 13565 states and 14456 transitions. [2024-11-16 03:52:26,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 850 [2024-11-16 03:52:26,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:26,114 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:26,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-16 03:52:26,114 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:26,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:26,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1799461517, now seen corresponding path program 1 times [2024-11-16 03:52:26,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:26,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695565318] [2024-11-16 03:52:26,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:26,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:26,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:26,409 INFO L134 CoverageAnalysis]: Checked inductivity of 2443 backedges. 1604 proven. 0 refuted. 0 times theorem prover too weak. 839 trivial. 0 not checked. [2024-11-16 03:52:26,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:26,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695565318] [2024-11-16 03:52:26,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695565318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:26,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:26,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:26,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373673449] [2024-11-16 03:52:26,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:26,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:26,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:26,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:26,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:26,411 INFO L87 Difference]: Start difference. First operand 13565 states and 14456 transitions. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:26,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:26,934 INFO L93 Difference]: Finished difference Result 27501 states and 29326 transitions. [2024-11-16 03:52:26,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:26,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 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 849 [2024-11-16 03:52:26,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:26,948 INFO L225 Difference]: With dead ends: 27501 [2024-11-16 03:52:26,948 INFO L226 Difference]: Without dead ends: 14308 [2024-11-16 03:52:26,955 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:26,956 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 116 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:26,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 334 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 03:52:26,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14308 states. [2024-11-16 03:52:27,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14308 to 13380. [2024-11-16 03:52:27,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13380 states, 13379 states have (on average 1.0639061215337469) internal successors, (14234), 13379 states have internal predecessors, (14234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:27,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13380 states to 13380 states and 14234 transitions. [2024-11-16 03:52:27,074 INFO L78 Accepts]: Start accepts. Automaton has 13380 states and 14234 transitions. Word has length 849 [2024-11-16 03:52:27,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:27,075 INFO L471 AbstractCegarLoop]: Abstraction has 13380 states and 14234 transitions. [2024-11-16 03:52:27,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:27,075 INFO L276 IsEmpty]: Start isEmpty. Operand 13380 states and 14234 transitions. [2024-11-16 03:52:27,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 875 [2024-11-16 03:52:27,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:27,084 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:27,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-16 03:52:27,085 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:27,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:27,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1430980393, now seen corresponding path program 1 times [2024-11-16 03:52:27,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:27,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880890341] [2024-11-16 03:52:27,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:27,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:27,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:27,853 INFO L134 CoverageAnalysis]: Checked inductivity of 2557 backedges. 2027 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2024-11-16 03:52:27,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:27,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880890341] [2024-11-16 03:52:27,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880890341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:27,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:27,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 03:52:27,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75152153] [2024-11-16 03:52:27,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:27,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:52:27,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:27,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:52:27,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:52:27,856 INFO L87 Difference]: Start difference. First operand 13380 states and 14234 transitions. Second operand has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:28,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:28,728 INFO L93 Difference]: Finished difference Result 29730 states and 31699 transitions. [2024-11-16 03:52:28,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:52:28,729 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 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 874 [2024-11-16 03:52:28,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:28,745 INFO L225 Difference]: With dead ends: 29730 [2024-11-16 03:52:28,745 INFO L226 Difference]: Without dead ends: 16907 [2024-11-16 03:52:28,753 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 [2024-11-16 03:52:28,753 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 192 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:28,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 97 Invalid, 1164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 03:52:28,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16907 states. [2024-11-16 03:52:28,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16907 to 15608. [2024-11-16 03:52:28,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15608 states, 15607 states have (on average 1.0667649131799832) internal successors, (16649), 15607 states have internal predecessors, (16649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:28,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15608 states to 15608 states and 16649 transitions. [2024-11-16 03:52:28,909 INFO L78 Accepts]: Start accepts. Automaton has 15608 states and 16649 transitions. Word has length 874 [2024-11-16 03:52:28,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:28,910 INFO L471 AbstractCegarLoop]: Abstraction has 15608 states and 16649 transitions. [2024-11-16 03:52:28,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:28,910 INFO L276 IsEmpty]: Start isEmpty. Operand 15608 states and 16649 transitions. [2024-11-16 03:52:28,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 881 [2024-11-16 03:52:28,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:28,920 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:28,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-16 03:52:28,920 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:28,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:28,921 INFO L85 PathProgramCache]: Analyzing trace with hash -486007471, now seen corresponding path program 1 times [2024-11-16 03:52:28,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:28,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054082298] [2024-11-16 03:52:28,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:28,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:29,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2053 backedges. 1541 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-16 03:52:29,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:29,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054082298] [2024-11-16 03:52:29,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054082298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:29,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:29,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 03:52:29,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901732679] [2024-11-16 03:52:29,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:29,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:52:29,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:29,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:52:29,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:52:29,703 INFO L87 Difference]: Start difference. First operand 15608 states and 16649 transitions. Second operand has 4 states, 4 states have (on average 131.5) internal successors, (526), 4 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:30,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:30,436 INFO L93 Difference]: Finished difference Result 25638 states and 27271 transitions. [2024-11-16 03:52:30,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:52:30,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 131.5) internal successors, (526), 4 states have internal predecessors, (526), 0 states have call successors, (0), 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 880 [2024-11-16 03:52:30,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:30,439 INFO L225 Difference]: With dead ends: 25638 [2024-11-16 03:52:30,439 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 03:52:30,448 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 [2024-11-16 03:52:30,448 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 230 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:30,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 47 Invalid, 979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 03:52:30,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 03:52:30,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 03:52:30,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:30,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 03:52:30,450 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 880 [2024-11-16 03:52:30,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:30,450 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 03:52:30,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 131.5) internal successors, (526), 4 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:30,450 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 03:52:30,450 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 03:52:30,453 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 03:52:30,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-16 03:52:30,457 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:30,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 03:52:40,411 WARN L286 SmtUtils]: Spent 9.95s on a formula simplification. DAG size of input: 724 DAG size of output: 983 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or)