./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label38.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem14_label38.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 bc0ea3f151b54a5cacbfb2ac1bcf8641acb27c1a8c6a79c608c08e8094ba54fe --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 19:38:32,357 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 19:38:32,418 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 19:38:32,423 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 19:38:32,423 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 19:38:32,442 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 19:38:32,442 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 19:38:32,443 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 19:38:32,443 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 19:38:32,443 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 19:38:32,444 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 19:38:32,444 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 19:38:32,445 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 19:38:32,445 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 19:38:32,445 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 19:38:32,445 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 19:38:32,446 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 19:38:32,446 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 19:38:32,446 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 19:38:32,447 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 19:38:32,447 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 19:38:32,448 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 19:38:32,448 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 19:38:32,448 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 19:38:32,448 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 19:38:32,449 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 19:38:32,449 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 19:38:32,449 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 19:38:32,449 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 19:38:32,450 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 19:38:32,450 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 19:38:32,450 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 19:38:32,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:38:32,451 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 19:38:32,451 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 19:38:32,451 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 19:38:32,452 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 19:38:32,452 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 19:38:32,452 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 19:38:32,452 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 19:38:32,452 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 19:38:32,457 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 19:38:32,457 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc0ea3f151b54a5cacbfb2ac1bcf8641acb27c1a8c6a79c608c08e8094ba54fe [2024-11-09 19:38:32,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 19:38:32,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 19:38:32,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 19:38:32,653 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 19:38:32,653 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 19:38:32,655 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label38.c [2024-11-09 19:38:34,070 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 19:38:34,361 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 19:38:34,363 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label38.c [2024-11-09 19:38:34,377 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57468aa63/6206fa4e1418492085c0574b9ce1bd41/FLAGf4b91deec [2024-11-09 19:38:34,393 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57468aa63/6206fa4e1418492085c0574b9ce1bd41 [2024-11-09 19:38:34,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 19:38:34,399 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 19:38:34,401 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 19:38:34,401 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 19:38:34,406 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 19:38:34,407 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:38:34" (1/1) ... [2024-11-09 19:38:34,408 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b18573c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:38:34, skipping insertion in model container [2024-11-09 19:38:34,408 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:38:34" (1/1) ... [2024-11-09 19:38:34,452 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 19:38:34,656 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/Problem14_label38.c[5189,5202] [2024-11-09 19:38:34,833 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:38:34,842 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 19:38:34,864 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/Problem14_label38.c[5189,5202] [2024-11-09 19:38:34,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:38:34,972 INFO L204 MainTranslator]: Completed translation [2024-11-09 19:38:34,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:38:34 WrapperNode [2024-11-09 19:38:34,973 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 19:38:34,975 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 19:38:34,975 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 19:38:34,975 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 19:38:34,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:38:34" (1/1) ... [2024-11-09 19:38:35,000 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:38:34" (1/1) ... [2024-11-09 19:38:35,051 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2024-11-09 19:38:35,052 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 19:38:35,052 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 19:38:35,052 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 19:38:35,052 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 19:38:35,067 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:38:34" (1/1) ... [2024-11-09 19:38:35,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:38:34" (1/1) ... [2024-11-09 19:38:35,076 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:38:34" (1/1) ... [2024-11-09 19:38:35,107 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]. [2024-11-09 19:38:35,111 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:38:34" (1/1) ... [2024-11-09 19:38:35,111 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:38:34" (1/1) ... [2024-11-09 19:38:35,128 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:38:34" (1/1) ... [2024-11-09 19:38:35,129 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:38:34" (1/1) ... [2024-11-09 19:38:35,135 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:38:34" (1/1) ... [2024-11-09 19:38:35,139 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:38:34" (1/1) ... [2024-11-09 19:38:35,154 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 19:38:35,156 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 19:38:35,156 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 19:38:35,156 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 19:38:35,157 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:38:34" (1/1) ... [2024-11-09 19:38:35,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:38:35,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:38:35,190 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) [2024-11-09 19:38:35,192 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 [2024-11-09 19:38:35,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 19:38:35,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 19:38:35,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 19:38:35,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 19:38:35,283 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 19:38:35,285 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 19:38:36,448 INFO L? ?]: Removed 236 outVars from TransFormulas that were not future-live. [2024-11-09 19:38:36,449 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 19:38:36,470 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 19:38:36,471 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 19:38:36,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:38:36 BoogieIcfgContainer [2024-11-09 19:38:36,472 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 19:38:36,474 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 19:38:36,474 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 19:38:36,477 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 19:38:36,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:38:34" (1/3) ... [2024-11-09 19:38:36,477 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@243964ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:38:36, skipping insertion in model container [2024-11-09 19:38:36,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:38:34" (2/3) ... [2024-11-09 19:38:36,478 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@243964ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:38:36, skipping insertion in model container [2024-11-09 19:38:36,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:38:36" (3/3) ... [2024-11-09 19:38:36,480 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label38.c [2024-11-09 19:38:36,494 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 19:38:36,494 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 19:38:36,559 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 19:38:36,565 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;@1695f707, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 19:38:36,566 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 19:38:36,570 INFO L276 IsEmpty]: Start isEmpty. Operand has 248 states, 246 states have (on average 2.186991869918699) internal successors, (538), 247 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:36,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-09 19:38:36,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:38:36,578 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:38:36,582 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:38:36,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:38:36,587 INFO L85 PathProgramCache]: Analyzing trace with hash -220645962, now seen corresponding path program 1 times [2024-11-09 19:38:36,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:38:36,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618665909] [2024-11-09 19:38:36,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:38:36,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:38:36,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:38:36,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:38:36,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:38:36,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618665909] [2024-11-09 19:38:36,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618665909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:38:36,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:38:36,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:38:36,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761670949] [2024-11-09 19:38:36,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:38:36,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:38:36,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:38:36,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:38:36,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:38:36,977 INFO L87 Difference]: Start difference. First operand has 248 states, 246 states have (on average 2.186991869918699) internal successors, (538), 247 states have internal predecessors, (538), 0 states have call successors, (0), 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 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:37,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:38:37,889 INFO L93 Difference]: Finished difference Result 675 states and 1545 transitions. [2024-11-09 19:38:37,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:38:37,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2024-11-09 19:38:37,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:38:37,901 INFO L225 Difference]: With dead ends: 675 [2024-11-09 19:38:37,901 INFO L226 Difference]: Without dead ends: 363 [2024-11-09 19:38:37,904 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 [2024-11-09 19:38:37,906 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 273 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:38:37,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 98 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 19:38:37,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-09 19:38:37,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2024-11-09 19:38:37,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 362 states have (on average 2.1408839779005526) internal successors, (775), 362 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:37,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 775 transitions. [2024-11-09 19:38:37,974 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 775 transitions. Word has length 52 [2024-11-09 19:38:37,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:38:37,978 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 775 transitions. [2024-11-09 19:38:37,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:37,979 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 775 transitions. [2024-11-09 19:38:37,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-09 19:38:37,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:38:37,985 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:38:37,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 19:38:37,986 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:38:37,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:38:37,986 INFO L85 PathProgramCache]: Analyzing trace with hash 545434228, now seen corresponding path program 1 times [2024-11-09 19:38:37,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:38:37,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202084051] [2024-11-09 19:38:37,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:38:37,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:38:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:38:38,266 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:38:38,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:38:38,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202084051] [2024-11-09 19:38:38,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202084051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:38:38,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:38:38,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:38:38,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166719314] [2024-11-09 19:38:38,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:38:38,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:38:38,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:38:38,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:38:38,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:38:38,270 INFO L87 Difference]: Start difference. First operand 363 states and 775 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:39,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:38:39,092 INFO L93 Difference]: Finished difference Result 1082 states and 2319 transitions. [2024-11-09 19:38:39,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:38:39,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2024-11-09 19:38:39,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:38:39,096 INFO L225 Difference]: With dead ends: 1082 [2024-11-09 19:38:39,096 INFO L226 Difference]: Without dead ends: 721 [2024-11-09 19:38:39,097 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 [2024-11-09 19:38:39,098 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 235 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:38:39,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 99 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 19:38:39,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2024-11-09 19:38:39,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 721. [2024-11-09 19:38:39,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 720 states have (on average 1.9791666666666667) internal successors, (1425), 720 states have internal predecessors, (1425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:39,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 1425 transitions. [2024-11-09 19:38:39,120 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 1425 transitions. Word has length 128 [2024-11-09 19:38:39,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:38:39,121 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 1425 transitions. [2024-11-09 19:38:39,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:39,121 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 1425 transitions. [2024-11-09 19:38:39,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-09 19:38:39,123 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:38:39,123 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:38:39,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 19:38:39,123 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:38:39,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:38:39,124 INFO L85 PathProgramCache]: Analyzing trace with hash 450028008, now seen corresponding path program 1 times [2024-11-09 19:38:39,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:38:39,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990735650] [2024-11-09 19:38:39,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:38:39,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:38:39,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:38:39,395 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:38:39,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:38:39,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990735650] [2024-11-09 19:38:39,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990735650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:38:39,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:38:39,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:38:39,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835905754] [2024-11-09 19:38:39,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:38:39,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:38:39,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:38:39,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:38:39,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:38:39,398 INFO L87 Difference]: Start difference. First operand 721 states and 1425 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:40,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:38:40,663 INFO L93 Difference]: Finished difference Result 1977 states and 3826 transitions. [2024-11-09 19:38:40,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:38:40,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2024-11-09 19:38:40,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:38:40,669 INFO L225 Difference]: With dead ends: 1977 [2024-11-09 19:38:40,670 INFO L226 Difference]: Without dead ends: 1258 [2024-11-09 19:38:40,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:38:40,672 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 760 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 1428 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 1468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:38:40,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 128 Invalid, 1468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1428 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 19:38:40,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2024-11-09 19:38:40,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 1258. [2024-11-09 19:38:40,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 1257 states have (on average 1.863961813842482) internal successors, (2343), 1257 states have internal predecessors, (2343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:40,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 2343 transitions. [2024-11-09 19:38:40,708 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 2343 transitions. Word has length 132 [2024-11-09 19:38:40,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:38:40,709 INFO L471 AbstractCegarLoop]: Abstraction has 1258 states and 2343 transitions. [2024-11-09 19:38:40,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:40,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 2343 transitions. [2024-11-09 19:38:40,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-09 19:38:40,713 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:38:40,714 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, 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] [2024-11-09 19:38:40,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 19:38:40,714 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:38:40,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:38:40,715 INFO L85 PathProgramCache]: Analyzing trace with hash -11948190, now seen corresponding path program 1 times [2024-11-09 19:38:40,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:38:40,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790413328] [2024-11-09 19:38:40,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:38:40,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:38:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:38:40,972 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-09 19:38:40,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:38:40,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790413328] [2024-11-09 19:38:40,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790413328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:38:40,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:38:40,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:38:40,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978538413] [2024-11-09 19:38:40,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:38:40,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:38:40,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:38:40,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:38:40,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:38:40,975 INFO L87 Difference]: Start difference. First operand 1258 states and 2343 transitions. Second operand has 4 states, 4 states have (on average 48.75) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:41,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:38:41,845 INFO L93 Difference]: Finished difference Result 2723 states and 5066 transitions. [2024-11-09 19:38:41,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:38:41,846 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 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 213 [2024-11-09 19:38:41,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:38:41,851 INFO L225 Difference]: With dead ends: 2723 [2024-11-09 19:38:41,851 INFO L226 Difference]: Without dead ends: 1616 [2024-11-09 19:38:41,854 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 [2024-11-09 19:38:41,855 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 215 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 1141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:38:41,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 127 Invalid, 1141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 19:38:41,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2024-11-09 19:38:41,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1616. [2024-11-09 19:38:41,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1616 states, 1615 states have (on average 1.7510835913312695) internal successors, (2828), 1615 states have internal predecessors, (2828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:41,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 2828 transitions. [2024-11-09 19:38:41,883 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 2828 transitions. Word has length 213 [2024-11-09 19:38:41,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:38:41,884 INFO L471 AbstractCegarLoop]: Abstraction has 1616 states and 2828 transitions. [2024-11-09 19:38:41,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:41,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 2828 transitions. [2024-11-09 19:38:41,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-11-09 19:38:41,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:38:41,887 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, 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, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:38:41,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 19:38:41,887 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:38:41,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:38:41,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1556047428, now seen corresponding path program 1 times [2024-11-09 19:38:41,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:38:41,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259659874] [2024-11-09 19:38:41,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:38:41,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:38:41,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:38:42,276 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 194 proven. 132 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-09 19:38:42,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:38:42,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259659874] [2024-11-09 19:38:42,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259659874] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:38:42,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18294398] [2024-11-09 19:38:42,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:38:42,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:38:42,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:38:42,282 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) [2024-11-09 19:38:42,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 19:38:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:38:42,389 INFO L255 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:38:42,396 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:38:42,730 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-09 19:38:42,731 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:38:42,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18294398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:38:42,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:38:42,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-09 19:38:42,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681446390] [2024-11-09 19:38:42,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:38:42,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:38:42,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:38:42,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:38:42,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:38:42,733 INFO L87 Difference]: Start difference. First operand 1616 states and 2828 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:43,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:38:43,434 INFO L93 Difference]: Finished difference Result 3409 states and 6069 transitions. [2024-11-09 19:38:43,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:38:43,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 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 341 [2024-11-09 19:38:43,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:38:43,442 INFO L225 Difference]: With dead ends: 3409 [2024-11-09 19:38:43,443 INFO L226 Difference]: Without dead ends: 1974 [2024-11-09 19:38:43,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:38:43,446 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 196 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:38:43,446 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 50 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 19:38:43,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2024-11-09 19:38:43,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1795. [2024-11-09 19:38:43,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1795 states, 1794 states have (on average 1.7608695652173914) internal successors, (3159), 1794 states have internal predecessors, (3159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:43,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1795 states to 1795 states and 3159 transitions. [2024-11-09 19:38:43,475 INFO L78 Accepts]: Start accepts. Automaton has 1795 states and 3159 transitions. Word has length 341 [2024-11-09 19:38:43,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:38:43,476 INFO L471 AbstractCegarLoop]: Abstraction has 1795 states and 3159 transitions. [2024-11-09 19:38:43,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:43,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1795 states and 3159 transitions. [2024-11-09 19:38:43,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2024-11-09 19:38:43,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:38:43,480 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, 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, 2, 2, 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] [2024-11-09 19:38:43,495 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 19:38:43,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:38:43,684 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:38:43,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:38:43,685 INFO L85 PathProgramCache]: Analyzing trace with hash 799880632, now seen corresponding path program 1 times [2024-11-09 19:38:43,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:38:43,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086761328] [2024-11-09 19:38:43,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:38:43,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:38:43,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:38:44,244 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 278 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:38:44,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:38:44,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086761328] [2024-11-09 19:38:44,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086761328] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:38:44,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696939479] [2024-11-09 19:38:44,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:38:44,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:38:44,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:38:44,252 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) [2024-11-09 19:38:44,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 19:38:44,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:38:44,378 INFO L255 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 19:38:44,388 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:38:44,675 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 19:38:44,676 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:38:44,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696939479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:38:44,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:38:44,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-09 19:38:44,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440254824] [2024-11-09 19:38:44,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:38:44,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:38:44,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:38:44,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:38:44,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:38:44,678 INFO L87 Difference]: Start difference. First operand 1795 states and 3159 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:45,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:38:45,274 INFO L93 Difference]: Finished difference Result 3946 states and 6962 transitions. [2024-11-09 19:38:45,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:38:45,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 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 345 [2024-11-09 19:38:45,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:38:45,281 INFO L225 Difference]: With dead ends: 3946 [2024-11-09 19:38:45,282 INFO L226 Difference]: Without dead ends: 2332 [2024-11-09 19:38:45,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:38:45,284 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 193 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:38:45,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 59 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 19:38:45,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2332 states. [2024-11-09 19:38:45,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2332 to 2153. [2024-11-09 19:38:45,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2153 states, 2152 states have (on average 1.7588289962825279) internal successors, (3785), 2152 states have internal predecessors, (3785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:45,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2153 states to 2153 states and 3785 transitions. [2024-11-09 19:38:45,314 INFO L78 Accepts]: Start accepts. Automaton has 2153 states and 3785 transitions. Word has length 345 [2024-11-09 19:38:45,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:38:45,314 INFO L471 AbstractCegarLoop]: Abstraction has 2153 states and 3785 transitions. [2024-11-09 19:38:45,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:45,314 INFO L276 IsEmpty]: Start isEmpty. Operand 2153 states and 3785 transitions. [2024-11-09 19:38:45,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2024-11-09 19:38:45,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:38:45,318 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:38:45,334 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 19:38:45,522 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,SelfDestructingSolverStorable5 [2024-11-09 19:38:45,523 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:38:45,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:38:45,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1239484232, now seen corresponding path program 1 times [2024-11-09 19:38:45,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:38:45,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248223286] [2024-11-09 19:38:45,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:38:45,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:38:45,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:38:45,861 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 514 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-09 19:38:45,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:38:45,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248223286] [2024-11-09 19:38:45,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248223286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:38:45,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:38:45,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:38:45,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807272327] [2024-11-09 19:38:45,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:38:45,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:38:45,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:38:45,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:38:45,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:38:45,863 INFO L87 Difference]: Start difference. First operand 2153 states and 3785 transitions. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:46,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:38:46,517 INFO L93 Difference]: Finished difference Result 4662 states and 8239 transitions. [2024-11-09 19:38:46,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:38:46,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 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 415 [2024-11-09 19:38:46,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:38:46,526 INFO L225 Difference]: With dead ends: 4662 [2024-11-09 19:38:46,527 INFO L226 Difference]: Without dead ends: 2690 [2024-11-09 19:38:46,530 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 [2024-11-09 19:38:46,532 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 224 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:38:46,532 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 81 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 19:38:46,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2690 states. [2024-11-09 19:38:46,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2690 to 2511. [2024-11-09 19:38:46,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2511 states, 2510 states have (on average 1.756175298804781) internal successors, (4408), 2510 states have internal predecessors, (4408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:46,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 4408 transitions. [2024-11-09 19:38:46,582 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 4408 transitions. Word has length 415 [2024-11-09 19:38:46,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:38:46,583 INFO L471 AbstractCegarLoop]: Abstraction has 2511 states and 4408 transitions. [2024-11-09 19:38:46,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:46,583 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 4408 transitions. [2024-11-09 19:38:46,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2024-11-09 19:38:46,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:38:46,587 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:38:46,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 19:38:46,587 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:38:46,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:38:46,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1061025170, now seen corresponding path program 1 times [2024-11-09 19:38:46,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:38:46,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935238437] [2024-11-09 19:38:46,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:38:46,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:38:46,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:38:46,854 INFO L134 CoverageAnalysis]: Checked inductivity of 700 backedges. 415 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2024-11-09 19:38:46,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:38:46,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935238437] [2024-11-09 19:38:46,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935238437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:38:46,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:38:46,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:38:46,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612379186] [2024-11-09 19:38:46,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:38:46,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:38:46,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:38:46,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:38:46,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:38:46,857 INFO L87 Difference]: Start difference. First operand 2511 states and 4408 transitions. Second operand has 4 states, 4 states have (on average 56.0) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:47,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:38:47,545 INFO L93 Difference]: Finished difference Result 5080 states and 8891 transitions. [2024-11-09 19:38:47,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:38:47,547 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 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 426 [2024-11-09 19:38:47,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:38:47,554 INFO L225 Difference]: With dead ends: 5080 [2024-11-09 19:38:47,555 INFO L226 Difference]: Without dead ends: 2690 [2024-11-09 19:38:47,557 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 [2024-11-09 19:38:47,558 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 255 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:38:47,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 23 Invalid, 1070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1024 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 19:38:47,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2690 states. [2024-11-09 19:38:47,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2690 to 2511. [2024-11-09 19:38:47,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2511 states, 2510 states have (on average 1.7127490039840638) internal successors, (4299), 2510 states have internal predecessors, (4299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:47,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 4299 transitions. [2024-11-09 19:38:47,590 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 4299 transitions. Word has length 426 [2024-11-09 19:38:47,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:38:47,591 INFO L471 AbstractCegarLoop]: Abstraction has 2511 states and 4299 transitions. [2024-11-09 19:38:47,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:47,591 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 4299 transitions. [2024-11-09 19:38:47,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2024-11-09 19:38:47,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:38:47,595 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, 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, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:38:47,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 19:38:47,596 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:38:47,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:38:47,596 INFO L85 PathProgramCache]: Analyzing trace with hash -633362732, now seen corresponding path program 2 times [2024-11-09 19:38:47,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:38:47,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013931724] [2024-11-09 19:38:47,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:38:47,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:38:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:38:47,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1079 backedges. 713 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2024-11-09 19:38:47,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:38:47,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013931724] [2024-11-09 19:38:47,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013931724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:38:47,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:38:47,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:38:47,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493336153] [2024-11-09 19:38:47,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:38:47,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:38:47,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:38:47,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:38:47,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:38:47,979 INFO L87 Difference]: Start difference. First operand 2511 states and 4299 transitions. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:48,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:38:48,562 INFO L93 Difference]: Finished difference Result 5378 states and 9257 transitions. [2024-11-09 19:38:48,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:38:48,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 522 [2024-11-09 19:38:48,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:38:48,571 INFO L225 Difference]: With dead ends: 5378 [2024-11-09 19:38:48,572 INFO L226 Difference]: Without dead ends: 3048 [2024-11-09 19:38:48,574 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 [2024-11-09 19:38:48,574 INFO L432 NwaCegarLoop]: 356 mSDtfsCounter, 223 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:38:48,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 363 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 19:38:48,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3048 states. [2024-11-09 19:38:48,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3048 to 2511. [2024-11-09 19:38:48,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2511 states, 2510 states have (on average 1.7103585657370517) internal successors, (4293), 2510 states have internal predecessors, (4293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:48,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 4293 transitions. [2024-11-09 19:38:48,659 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 4293 transitions. Word has length 522 [2024-11-09 19:38:48,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:38:48,659 INFO L471 AbstractCegarLoop]: Abstraction has 2511 states and 4293 transitions. [2024-11-09 19:38:48,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:48,660 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 4293 transitions. [2024-11-09 19:38:48,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2024-11-09 19:38:48,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:38:48,671 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, 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, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:38:48,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 19:38:48,672 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:38:48,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:38:48,672 INFO L85 PathProgramCache]: Analyzing trace with hash 95961556, now seen corresponding path program 1 times [2024-11-09 19:38:48,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:38:48,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474847393] [2024-11-09 19:38:48,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:38:48,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:38:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:38:49,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1079 backedges. 713 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2024-11-09 19:38:49,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:38:49,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474847393] [2024-11-09 19:38:49,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474847393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:38:49,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:38:49,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:38:49,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173397820] [2024-11-09 19:38:49,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:38:49,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:38:49,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:38:49,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:38:49,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:38:49,143 INFO L87 Difference]: Start difference. First operand 2511 states and 4293 transitions. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:49,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:38:49,810 INFO L93 Difference]: Finished difference Result 5378 states and 9268 transitions. [2024-11-09 19:38:49,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:38:49,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 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 529 [2024-11-09 19:38:49,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:38:49,817 INFO L225 Difference]: With dead ends: 5378 [2024-11-09 19:38:49,817 INFO L226 Difference]: Without dead ends: 3048 [2024-11-09 19:38:49,819 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 [2024-11-09 19:38:49,819 INFO L432 NwaCegarLoop]: 350 mSDtfsCounter, 223 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:38:49,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 357 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 19:38:49,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3048 states. [2024-11-09 19:38:49,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3048 to 2690. [2024-11-09 19:38:49,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2690 states, 2689 states have (on average 1.718110821866865) internal successors, (4620), 2689 states have internal predecessors, (4620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:49,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2690 states to 2690 states and 4620 transitions. [2024-11-09 19:38:49,847 INFO L78 Accepts]: Start accepts. Automaton has 2690 states and 4620 transitions. Word has length 529 [2024-11-09 19:38:49,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:38:49,848 INFO L471 AbstractCegarLoop]: Abstraction has 2690 states and 4620 transitions. [2024-11-09 19:38:49,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:49,848 INFO L276 IsEmpty]: Start isEmpty. Operand 2690 states and 4620 transitions. [2024-11-09 19:38:49,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2024-11-09 19:38:49,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:38:49,851 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:38:49,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 19:38:49,852 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:38:49,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:38:49,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1242827812, now seen corresponding path program 1 times [2024-11-09 19:38:49,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:38:49,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919453894] [2024-11-09 19:38:49,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:38:49,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:38:49,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:38:50,276 INFO L134 CoverageAnalysis]: Checked inductivity of 838 backedges. 428 proven. 93 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2024-11-09 19:38:50,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:38:50,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919453894] [2024-11-09 19:38:50,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919453894] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:38:50,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759162896] [2024-11-09 19:38:50,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:38:50,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:38:50,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:38:50,279 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) [2024-11-09 19:38:50,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 19:38:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:38:50,413 INFO L255 TraceCheckSpWp]: Trace formula consists of 691 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:38:50,417 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:38:50,579 INFO L134 CoverageAnalysis]: Checked inductivity of 838 backedges. 521 proven. 0 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2024-11-09 19:38:50,580 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:38:50,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [759162896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:38:50,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:38:50,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-09 19:38:50,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821244932] [2024-11-09 19:38:50,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:38:50,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:38:50,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:38:50,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:38:50,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:38:50,582 INFO L87 Difference]: Start difference. First operand 2690 states and 4620 transitions. Second operand has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:51,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:38:51,149 INFO L93 Difference]: Finished difference Result 6273 states and 10826 transitions. [2024-11-09 19:38:51,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:38:51,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 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 555 [2024-11-09 19:38:51,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:38:51,159 INFO L225 Difference]: With dead ends: 6273 [2024-11-09 19:38:51,160 INFO L226 Difference]: Without dead ends: 3764 [2024-11-09 19:38:51,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 554 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:38:51,163 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 120 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:38:51,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 56 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 19:38:51,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3764 states. [2024-11-09 19:38:51,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3764 to 3764. [2024-11-09 19:38:51,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3764 states, 3763 states have (on average 1.71166622375764) internal successors, (6441), 3763 states have internal predecessors, (6441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:51,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3764 states to 3764 states and 6441 transitions. [2024-11-09 19:38:51,203 INFO L78 Accepts]: Start accepts. Automaton has 3764 states and 6441 transitions. Word has length 555 [2024-11-09 19:38:51,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:38:51,204 INFO L471 AbstractCegarLoop]: Abstraction has 3764 states and 6441 transitions. [2024-11-09 19:38:51,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:51,204 INFO L276 IsEmpty]: Start isEmpty. Operand 3764 states and 6441 transitions. [2024-11-09 19:38:51,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 712 [2024-11-09 19:38:51,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:38:51,209 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, 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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:38:51,226 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 19:38:51,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:38:51,414 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:38:51,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:38:51,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1148813298, now seen corresponding path program 1 times [2024-11-09 19:38:51,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:38:51,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546901921] [2024-11-09 19:38:51,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:38:51,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:38:51,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:38:51,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1369 backedges. 896 proven. 156 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2024-11-09 19:38:51,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:38:51,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546901921] [2024-11-09 19:38:51,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546901921] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:38:51,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832486107] [2024-11-09 19:38:51,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:38:51,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:38:51,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:38:51,809 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:38:51,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 19:38:51,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:38:51,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 870 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:38:51,980 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:38:52,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1369 backedges. 244 proven. 0 refuted. 0 times theorem prover too weak. 1125 trivial. 0 not checked. [2024-11-09 19:38:52,070 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:38:52,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832486107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:38:52,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:38:52,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-09 19:38:52,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197448850] [2024-11-09 19:38:52,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:38:52,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:38:52,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:38:52,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:38:52,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:38:52,073 INFO L87 Difference]: Start difference. First operand 3764 states and 6441 transitions. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:52,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:38:52,729 INFO L93 Difference]: Finished difference Result 8063 states and 13881 transitions. [2024-11-09 19:38:52,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:38:52,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 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 711 [2024-11-09 19:38:52,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:38:52,760 INFO L225 Difference]: With dead ends: 8063 [2024-11-09 19:38:52,760 INFO L226 Difference]: Without dead ends: 4480 [2024-11-09 19:38:52,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 714 GetRequests, 711 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:38:52,767 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 245 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:38:52,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 44 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 19:38:52,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4480 states. [2024-11-09 19:38:52,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4480 to 4480. [2024-11-09 19:38:52,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4480 states, 4479 states have (on average 1.7200267916945746) internal successors, (7704), 4479 states have internal predecessors, (7704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:52,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4480 states to 4480 states and 7704 transitions. [2024-11-09 19:38:52,919 INFO L78 Accepts]: Start accepts. Automaton has 4480 states and 7704 transitions. Word has length 711 [2024-11-09 19:38:52,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:38:52,924 INFO L471 AbstractCegarLoop]: Abstraction has 4480 states and 7704 transitions. [2024-11-09 19:38:52,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:52,924 INFO L276 IsEmpty]: Start isEmpty. Operand 4480 states and 7704 transitions. [2024-11-09 19:38:52,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 738 [2024-11-09 19:38:52,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:38:52,942 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, 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, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:38:52,957 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 19:38:53,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:38:53,143 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:38:53,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:38:53,143 INFO L85 PathProgramCache]: Analyzing trace with hash 189944478, now seen corresponding path program 1 times [2024-11-09 19:38:53,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:38:53,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830579574] [2024-11-09 19:38:53,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:38:53,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:38:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:38:53,945 INFO L134 CoverageAnalysis]: Checked inductivity of 2124 backedges. 1626 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2024-11-09 19:38:53,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:38:53,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830579574] [2024-11-09 19:38:53,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830579574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:38:53,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:38:53,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 19:38:53,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834150552] [2024-11-09 19:38:53,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:38:53,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:38:53,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:38:53,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:38:53,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:38:53,947 INFO L87 Difference]: Start difference. First operand 4480 states and 7704 transitions. Second operand has 4 states, 4 states have (on average 99.25) internal successors, (397), 4 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) [2024-11-09 19:38:54,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:38:54,930 INFO L93 Difference]: Finished difference Result 8958 states and 15406 transitions. [2024-11-09 19:38:54,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:38:54,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 99.25) internal successors, (397), 4 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 737 [2024-11-09 19:38:54,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:38:54,938 INFO L225 Difference]: With dead ends: 8958 [2024-11-09 19:38:54,939 INFO L226 Difference]: Without dead ends: 4659 [2024-11-09 19:38:54,942 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 [2024-11-09 19:38:54,942 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 440 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:38:54,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 74 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 19:38:54,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4659 states. [2024-11-09 19:38:54,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4659 to 4301. [2024-11-09 19:38:54,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4301 states, 4300 states have (on average 1.7144186046511627) internal successors, (7372), 4300 states have internal predecessors, (7372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:54,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4301 states to 4301 states and 7372 transitions. [2024-11-09 19:38:54,988 INFO L78 Accepts]: Start accepts. Automaton has 4301 states and 7372 transitions. Word has length 737 [2024-11-09 19:38:54,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:38:54,988 INFO L471 AbstractCegarLoop]: Abstraction has 4301 states and 7372 transitions. [2024-11-09 19:38:54,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.25) internal successors, (397), 4 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) [2024-11-09 19:38:54,989 INFO L276 IsEmpty]: Start isEmpty. Operand 4301 states and 7372 transitions. [2024-11-09 19:38:54,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2024-11-09 19:38:54,994 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:38:54,994 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:38:54,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 19:38:54,995 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:38:54,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:38:54,995 INFO L85 PathProgramCache]: Analyzing trace with hash 225269870, now seen corresponding path program 1 times [2024-11-09 19:38:54,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:38:54,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183538022] [2024-11-09 19:38:54,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:38:54,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:38:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:38:55,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1832 backedges. 1310 proven. 156 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2024-11-09 19:38:55,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:38:55,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183538022] [2024-11-09 19:38:55,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183538022] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:38:55,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234937372] [2024-11-09 19:38:55,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:38:55,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:38:55,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:38:55,390 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:38:55,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 19:38:55,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:38:55,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 976 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:38:55,585 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:38:55,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1832 backedges. 293 proven. 0 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2024-11-09 19:38:55,656 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:38:55,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234937372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:38:55,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:38:55,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-09 19:38:55,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107378029] [2024-11-09 19:38:55,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:38:55,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:38:55,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:38:55,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:38:55,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:38:55,658 INFO L87 Difference]: Start difference. First operand 4301 states and 7372 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:56,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:38:56,193 INFO L93 Difference]: Finished difference Result 5915 states and 10095 transitions. [2024-11-09 19:38:56,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:38:56,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 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 794 [2024-11-09 19:38:56,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:38:56,202 INFO L225 Difference]: With dead ends: 5915 [2024-11-09 19:38:56,203 INFO L226 Difference]: Without dead ends: 5912 [2024-11-09 19:38:56,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 797 GetRequests, 794 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:38:56,205 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 265 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:38:56,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 21 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 19:38:56,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5912 states. [2024-11-09 19:38:56,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5912 to 4480. [2024-11-09 19:38:56,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4480 states, 4479 states have (on average 1.716231301629828) internal successors, (7687), 4479 states have internal predecessors, (7687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:56,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4480 states to 4480 states and 7687 transitions. [2024-11-09 19:38:56,254 INFO L78 Accepts]: Start accepts. Automaton has 4480 states and 7687 transitions. Word has length 794 [2024-11-09 19:38:56,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:38:56,254 INFO L471 AbstractCegarLoop]: Abstraction has 4480 states and 7687 transitions. [2024-11-09 19:38:56,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:56,255 INFO L276 IsEmpty]: Start isEmpty. Operand 4480 states and 7687 transitions. [2024-11-09 19:38:56,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 813 [2024-11-09 19:38:56,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:38:56,261 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, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:38:56,274 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 19:38:56,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-09 19:38:56,462 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:38:56,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:38:56,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1834773560, now seen corresponding path program 1 times [2024-11-09 19:38:56,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:38:56,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619431447] [2024-11-09 19:38:56,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:38:56,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:38:56,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:38:56,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1922 backedges. 1400 proven. 156 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2024-11-09 19:38:56,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:38:56,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619431447] [2024-11-09 19:38:56,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619431447] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:38:56,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755294938] [2024-11-09 19:38:56,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:38:56,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:38:56,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:38:56,806 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:38:56,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 19:38:56,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:38:56,983 INFO L255 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:38:56,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:38:57,127 INFO L134 CoverageAnalysis]: Checked inductivity of 1922 backedges. 293 proven. 0 refuted. 0 times theorem prover too weak. 1629 trivial. 0 not checked. [2024-11-09 19:38:57,129 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:38:57,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755294938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:38:57,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:38:57,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-09 19:38:57,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818561525] [2024-11-09 19:38:57,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:38:57,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:38:57,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:38:57,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:38:57,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:38:57,135 INFO L87 Difference]: Start difference. First operand 4480 states and 7687 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:57,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:38:57,783 INFO L93 Difference]: Finished difference Result 10032 states and 17254 transitions. [2024-11-09 19:38:57,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:38:57,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 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 812 [2024-11-09 19:38:57,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:38:57,793 INFO L225 Difference]: With dead ends: 10032 [2024-11-09 19:38:57,793 INFO L226 Difference]: Without dead ends: 5733 [2024-11-09 19:38:57,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 815 GetRequests, 812 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:38:57,798 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 249 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:38:57,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 52 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 19:38:57,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5733 states. [2024-11-09 19:38:57,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5733 to 5375. [2024-11-09 19:38:57,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5375 states, 5374 states have (on average 1.716970599181243) internal successors, (9227), 5374 states have internal predecessors, (9227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:57,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5375 states to 5375 states and 9227 transitions. [2024-11-09 19:38:57,885 INFO L78 Accepts]: Start accepts. Automaton has 5375 states and 9227 transitions. Word has length 812 [2024-11-09 19:38:57,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:38:57,885 INFO L471 AbstractCegarLoop]: Abstraction has 5375 states and 9227 transitions. [2024-11-09 19:38:57,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:57,886 INFO L276 IsEmpty]: Start isEmpty. Operand 5375 states and 9227 transitions. [2024-11-09 19:38:57,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 881 [2024-11-09 19:38:57,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:38:57,894 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, 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, 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, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:38:57,909 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 19:38:58,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-09 19:38:58,095 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:38:58,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:38:58,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1326198098, now seen corresponding path program 1 times [2024-11-09 19:38:58,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:38:58,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440766676] [2024-11-09 19:38:58,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:38:58,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:38:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:38:58,586 INFO L134 CoverageAnalysis]: Checked inductivity of 2425 backedges. 1575 proven. 0 refuted. 0 times theorem prover too weak. 850 trivial. 0 not checked. [2024-11-09 19:38:58,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:38:58,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440766676] [2024-11-09 19:38:58,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440766676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:38:58,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:38:58,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:38:58,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739240256] [2024-11-09 19:38:58,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:38:58,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:38:58,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:38:58,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:38:58,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:38:58,589 INFO L87 Difference]: Start difference. First operand 5375 states and 9227 transitions. Second operand has 3 states, 3 states have (on average 133.66666666666666) internal successors, (401), 3 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:59,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:38:59,068 INFO L93 Difference]: Finished difference Result 10569 states and 18159 transitions. [2024-11-09 19:38:59,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:38:59,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 133.66666666666666) internal successors, (401), 3 states have internal predecessors, (401), 0 states have call successors, (0), 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 [2024-11-09 19:38:59,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:38:59,078 INFO L225 Difference]: With dead ends: 10569 [2024-11-09 19:38:59,078 INFO L226 Difference]: Without dead ends: 5375 [2024-11-09 19:38:59,083 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 [2024-11-09 19:38:59,084 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 223 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:38:59,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 345 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 19:38:59,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5375 states. [2024-11-09 19:38:59,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5375 to 5017. [2024-11-09 19:38:59,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5017 states, 5016 states have (on average 1.7023524720893142) internal successors, (8539), 5016 states have internal predecessors, (8539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:59,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5017 states to 5017 states and 8539 transitions. [2024-11-09 19:38:59,139 INFO L78 Accepts]: Start accepts. Automaton has 5017 states and 8539 transitions. Word has length 880 [2024-11-09 19:38:59,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:38:59,139 INFO L471 AbstractCegarLoop]: Abstraction has 5017 states and 8539 transitions. [2024-11-09 19:38:59,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.66666666666666) internal successors, (401), 3 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:38:59,139 INFO L276 IsEmpty]: Start isEmpty. Operand 5017 states and 8539 transitions. [2024-11-09 19:38:59,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1051 [2024-11-09 19:38:59,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:38:59,149 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 6, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:38:59,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 19:38:59,149 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:38:59,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:38:59,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1483713938, now seen corresponding path program 1 times [2024-11-09 19:38:59,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:38:59,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037588977] [2024-11-09 19:38:59,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:38:59,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:38:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:38:59,903 INFO L134 CoverageAnalysis]: Checked inductivity of 3301 backedges. 1720 proven. 0 refuted. 0 times theorem prover too weak. 1581 trivial. 0 not checked. [2024-11-09 19:38:59,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:38:59,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037588977] [2024-11-09 19:38:59,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037588977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:38:59,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:38:59,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 19:38:59,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060157566] [2024-11-09 19:38:59,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:38:59,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 19:38:59,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:38:59,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 19:38:59,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:38:59,906 INFO L87 Difference]: Start difference. First operand 5017 states and 8539 transitions. Second operand has 7 states, 7 states have (on average 56.857142857142854) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:39:00,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:39:00,781 INFO L93 Difference]: Finished difference Result 10006 states and 16936 transitions. [2024-11-09 19:39:00,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 19:39:00,781 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 56.857142857142854) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 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 1050 [2024-11-09 19:39:00,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:39:00,796 INFO L225 Difference]: With dead ends: 10006 [2024-11-09 19:39:00,800 INFO L226 Difference]: Without dead ends: 5017 [2024-11-09 19:39:00,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:39:00,804 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 171 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:39:00,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 34 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1404 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 19:39:00,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5017 states. [2024-11-09 19:39:00,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5017 to 5017. [2024-11-09 19:39:00,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5017 states, 5016 states have (on average 1.6893939393939394) internal successors, (8474), 5016 states have internal predecessors, (8474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:39:00,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5017 states to 5017 states and 8474 transitions. [2024-11-09 19:39:00,855 INFO L78 Accepts]: Start accepts. Automaton has 5017 states and 8474 transitions. Word has length 1050 [2024-11-09 19:39:00,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:39:00,856 INFO L471 AbstractCegarLoop]: Abstraction has 5017 states and 8474 transitions. [2024-11-09 19:39:00,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 56.857142857142854) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:39:00,856 INFO L276 IsEmpty]: Start isEmpty. Operand 5017 states and 8474 transitions. [2024-11-09 19:39:00,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1123 [2024-11-09 19:39:00,867 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:39:00,867 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:39:00,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 19:39:00,868 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:39:00,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:39:00,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1807774044, now seen corresponding path program 1 times [2024-11-09 19:39:00,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:39:00,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880276230] [2024-11-09 19:39:00,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:39:00,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:39:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:39:01,765 INFO L134 CoverageAnalysis]: Checked inductivity of 3822 backedges. 1325 proven. 0 refuted. 0 times theorem prover too weak. 2497 trivial. 0 not checked. [2024-11-09 19:39:01,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:39:01,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880276230] [2024-11-09 19:39:01,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880276230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:39:01,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:39:01,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:39:01,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19140106] [2024-11-09 19:39:01,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:39:01,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:39:01,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:39:01,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:39:01,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:39:01,772 INFO L87 Difference]: Start difference. First operand 5017 states and 8474 transitions. Second operand has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:39:02,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:39:02,376 INFO L93 Difference]: Finished difference Result 10032 states and 16962 transitions. [2024-11-09 19:39:02,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:39:02,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 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 1122 [2024-11-09 19:39:02,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:39:02,392 INFO L225 Difference]: With dead ends: 10032 [2024-11-09 19:39:02,392 INFO L226 Difference]: Without dead ends: 5196 [2024-11-09 19:39:02,399 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 [2024-11-09 19:39:02,403 INFO L432 NwaCegarLoop]: 343 mSDtfsCounter, 132 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:39:02,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 348 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 19:39:02,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5196 states. [2024-11-09 19:39:02,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5196 to 5196. [2024-11-09 19:39:02,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5196 states, 5195 states have (on average 1.6748796920115496) internal successors, (8701), 5195 states have internal predecessors, (8701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:39:02,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5196 states to 5196 states and 8701 transitions. [2024-11-09 19:39:02,469 INFO L78 Accepts]: Start accepts. Automaton has 5196 states and 8701 transitions. Word has length 1122 [2024-11-09 19:39:02,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:39:02,470 INFO L471 AbstractCegarLoop]: Abstraction has 5196 states and 8701 transitions. [2024-11-09 19:39:02,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:39:02,470 INFO L276 IsEmpty]: Start isEmpty. Operand 5196 states and 8701 transitions. [2024-11-09 19:39:02,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1171 [2024-11-09 19:39:02,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:39:02,484 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 6, 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, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:39:02,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 19:39:02,484 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:39:02,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:39:02,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1311775028, now seen corresponding path program 1 times [2024-11-09 19:39:02,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:39:02,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403936439] [2024-11-09 19:39:02,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:39:02,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:39:02,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:39:03,548 INFO L134 CoverageAnalysis]: Checked inductivity of 4067 backedges. 426 proven. 1479 refuted. 0 times theorem prover too weak. 2162 trivial. 0 not checked. [2024-11-09 19:39:03,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:39:03,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403936439] [2024-11-09 19:39:03,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403936439] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:39:03,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468976239] [2024-11-09 19:39:03,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:39:03,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:39:03,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:39:03,551 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:39:03,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 19:39:03,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:39:03,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 1414 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:39:03,857 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:39:03,947 INFO L134 CoverageAnalysis]: Checked inductivity of 4067 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 3627 trivial. 0 not checked. [2024-11-09 19:39:03,948 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:39:03,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468976239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:39:03,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:39:03,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-09 19:39:03,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210325103] [2024-11-09 19:39:03,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:39:03,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:39:03,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:39:03,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:39:03,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:39:03,952 INFO L87 Difference]: Start difference. First operand 5196 states and 8701 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:39:04,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:39:04,391 INFO L93 Difference]: Finished difference Result 11103 states and 18579 transitions. [2024-11-09 19:39:04,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:39:04,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 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 1170 [2024-11-09 19:39:04,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:39:04,392 INFO L225 Difference]: With dead ends: 11103 [2024-11-09 19:39:04,393 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 19:39:04,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1175 GetRequests, 1170 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:39:04,399 INFO L432 NwaCegarLoop]: 347 mSDtfsCounter, 244 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:39:04,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 352 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 19:39:04,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 19:39:04,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 19:39:04,400 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) [2024-11-09 19:39:04,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 19:39:04,401 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1170 [2024-11-09 19:39:04,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:39:04,402 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 19:39:04,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:39:04,402 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 19:39:04,402 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 19:39:04,404 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 19:39:04,419 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 19:39:04,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:39:04,611 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:39:04,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 19:39:05,165 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 19:39:05,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:39:05 BoogieIcfgContainer [2024-11-09 19:39:05,178 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 19:39:05,178 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 19:39:05,178 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 19:39:05,178 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 19:39:05,179 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:38:36" (3/4) ... [2024-11-09 19:39:05,182 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-09 19:39:05,203 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-09 19:39:05,205 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 19:39:05,206 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 19:39:05,207 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 19:39:05,350 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 19:39:05,351 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 19:39:05,351 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 19:39:05,352 INFO L158 Benchmark]: Toolchain (without parser) took 30953.12ms. Allocated memory was 176.2MB in the beginning and 964.7MB in the end (delta: 788.5MB). Free memory was 105.2MB in the beginning and 881.1MB in the end (delta: -775.9MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2024-11-09 19:39:05,353 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 176.2MB. Free memory was 133.2MB in the beginning and 133.0MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 19:39:05,353 INFO L158 Benchmark]: CACSL2BoogieTranslator took 573.09ms. Allocated memory is still 176.2MB. Free memory was 104.9MB in the beginning and 127.2MB in the end (delta: -22.3MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2024-11-09 19:39:05,353 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.98ms. Allocated memory is still 176.2MB. Free memory was 127.2MB in the beginning and 117.4MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-09 19:39:05,353 INFO L158 Benchmark]: Boogie Preprocessor took 102.64ms. Allocated memory is still 176.2MB. Free memory was 117.4MB in the beginning and 105.6MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 19:39:05,353 INFO L158 Benchmark]: IcfgBuilder took 1315.85ms. Allocated memory was 176.2MB in the beginning and 268.4MB in the end (delta: 92.3MB). Free memory was 105.6MB in the beginning and 214.2MB in the end (delta: -108.7MB). Peak memory consumption was 77.2MB. Max. memory is 16.1GB. [2024-11-09 19:39:05,354 INFO L158 Benchmark]: TraceAbstraction took 28703.92ms. Allocated memory was 268.4MB in the beginning and 964.7MB in the end (delta: 696.3MB). Free memory was 213.2MB in the beginning and 898.9MB in the end (delta: -685.8MB). Peak memory consumption was 563.1MB. Max. memory is 16.1GB. [2024-11-09 19:39:05,356 INFO L158 Benchmark]: Witness Printer took 173.12ms. Allocated memory is still 964.7MB. Free memory was 898.9MB in the beginning and 881.1MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 19:39:05,357 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 176.2MB. Free memory was 133.2MB in the beginning and 133.0MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 573.09ms. Allocated memory is still 176.2MB. Free memory was 104.9MB in the beginning and 127.2MB in the end (delta: -22.3MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.98ms. Allocated memory is still 176.2MB. Free memory was 127.2MB in the beginning and 117.4MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 102.64ms. Allocated memory is still 176.2MB. Free memory was 117.4MB in the beginning and 105.6MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * IcfgBuilder took 1315.85ms. Allocated memory was 176.2MB in the beginning and 268.4MB in the end (delta: 92.3MB). Free memory was 105.6MB in the beginning and 214.2MB in the end (delta: -108.7MB). Peak memory consumption was 77.2MB. Max. memory is 16.1GB. * TraceAbstraction took 28703.92ms. Allocated memory was 268.4MB in the beginning and 964.7MB in the end (delta: 696.3MB). Free memory was 213.2MB in the beginning and 898.9MB in the end (delta: -685.8MB). Peak memory consumption was 563.1MB. Max. memory is 16.1GB. * Witness Printer took 173.12ms. Allocated memory is still 964.7MB. Free memory was 898.9MB in the beginning and 881.1MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 164]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 248 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 28.1s, OverallIterations: 19, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 13.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4886 SdHoareTripleChecker+Valid, 12.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4886 mSDsluCounter, 2711 SdHoareTripleChecker+Invalid, 10.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 159 mSDsCounter, 1118 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15433 IncrementalHoareTripleChecker+Invalid, 16551 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1118 mSolverCounterUnsat, 2552 mSDtfsCounter, 15433 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4791 GetRequests, 4743 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5375occurred in iteration=15, InterpolantAutomatonStates: 65, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 19 MinimizatonAttempts, 4117 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 8.9s InterpolantComputationTime, 15662 NumberOfCodeBlocks, 15662 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 15636 ConstructedInterpolants, 0 QuantifiedInterpolants, 37138 SizeOfPredicates, 0 NumberOfNonLiveVariables, 5855 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 26 InterpolantComputations, 19 PerfectInterpolantSequences, 34846/37150 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 890]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-09 19:39:05,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE