./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem13_label00.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem13_label00.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 1908a46c2d6c2885901135dd96252b8ed820acb687d93cae536846c5c1656ef1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 03:57:34,185 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 03:57:34,221 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 03:57:34,224 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 03:57:34,224 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 03:57:34,238 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 03:57:34,238 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 03:57:34,239 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 03:57:34,239 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 03:57:34,239 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 03:57:34,239 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 03:57:34,240 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 03:57:34,240 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 03:57:34,240 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 03:57:34,240 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 03:57:34,241 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 03:57:34,241 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 03:57:34,241 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 03:57:34,242 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 03:57:34,242 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 03:57:34,242 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 03:57:34,242 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 03:57:34,243 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 03:57:34,243 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 03:57:34,243 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 03:57:34,243 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 03:57:34,244 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 03:57:34,244 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 03:57:34,244 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 03:57:34,244 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 03:57:34,244 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 03:57:34,245 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 03:57:34,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:57:34,245 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 03:57:34,245 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 03:57:34,245 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 03:57:34,245 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 03:57:34,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 03:57:34,246 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 03:57:34,246 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 03:57:34,246 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 03:57:34,246 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 03:57:34,246 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1908a46c2d6c2885901135dd96252b8ed820acb687d93cae536846c5c1656ef1 [2024-11-16 03:57:34,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 03:57:34,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 03:57:34,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 03:57:34,466 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 03:57:34,466 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 03:57:34,467 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem13_label00.c [2024-11-16 03:57:35,678 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 03:57:35,996 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 03:57:35,997 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label00.c [2024-11-16 03:57:36,030 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31e36204a/24160260454940beb2f7935ead523850/FLAG8c3282117 [2024-11-16 03:57:36,042 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31e36204a/24160260454940beb2f7935ead523850 [2024-11-16 03:57:36,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 03:57:36,048 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 03:57:36,049 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 03:57:36,049 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 03:57:36,054 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 03:57:36,055 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:57:36" (1/1) ... [2024-11-16 03:57:36,056 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@112bc545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:36, skipping insertion in model container [2024-11-16 03:57:36,056 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:57:36" (1/1) ... [2024-11-16 03:57:36,211 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 03:57:36,407 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/Problem13_label00.c[5434,5447] [2024-11-16 03:57:37,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:57:37,070 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 03:57:37,086 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/Problem13_label00.c[5434,5447] [2024-11-16 03:57:37,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:57:37,446 INFO L204 MainTranslator]: Completed translation [2024-11-16 03:57:37,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:37 WrapperNode [2024-11-16 03:57:37,447 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 03:57:37,448 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 03:57:37,448 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 03:57:37,448 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 03:57:37,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:37" (1/1) ... [2024-11-16 03:57:37,506 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:37" (1/1) ... [2024-11-16 03:57:37,891 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5586 [2024-11-16 03:57:37,892 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 03:57:37,892 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 03:57:37,893 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 03:57:37,893 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 03:57:37,900 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:37" (1/1) ... [2024-11-16 03:57:37,901 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:37" (1/1) ... [2024-11-16 03:57:37,962 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:37" (1/1) ... [2024-11-16 03:57:38,176 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 03:57:38,176 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:37" (1/1) ... [2024-11-16 03:57:38,176 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:37" (1/1) ... [2024-11-16 03:57:38,401 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:37" (1/1) ... [2024-11-16 03:57:38,422 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:37" (1/1) ... [2024-11-16 03:57:38,454 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:37" (1/1) ... [2024-11-16 03:57:38,476 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:37" (1/1) ... [2024-11-16 03:57:38,523 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 03:57:38,524 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 03:57:38,525 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 03:57:38,525 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 03:57:38,526 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:37" (1/1) ... [2024-11-16 03:57:38,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:57:38,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:57:38,551 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 03:57:38,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 03:57:38,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 03:57:38,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 03:57:38,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 03:57:38,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 03:57:38,643 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 03:57:38,644 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 03:57:42,321 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1894: havoc calculate_output_#t~ret9#1; [2024-11-16 03:57:42,322 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3629: havoc calculate_output2_#t~ret10#1; [2024-11-16 03:57:42,322 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5351: havoc calculate_output3_#t~ret11#1; [2024-11-16 03:57:42,538 INFO L? ?]: Removed 738 outVars from TransFormulas that were not future-live. [2024-11-16 03:57:42,539 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 03:57:42,569 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 03:57:42,569 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 03:57:42,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:57:42 BoogieIcfgContainer [2024-11-16 03:57:42,571 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 03:57:42,573 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 03:57:42,573 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 03:57:42,576 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 03:57:42,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:57:36" (1/3) ... [2024-11-16 03:57:42,577 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d0b7ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:57:42, skipping insertion in model container [2024-11-16 03:57:42,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:37" (2/3) ... [2024-11-16 03:57:42,577 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d0b7ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:57:42, skipping insertion in model container [2024-11-16 03:57:42,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:57:42" (3/3) ... [2024-11-16 03:57:42,578 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label00.c [2024-11-16 03:57:42,592 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 03:57:42,592 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 03:57:42,664 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 03:57:42,672 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;@65cb07f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 03:57:42,672 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 03:57:42,679 INFO L276 IsEmpty]: Start isEmpty. Operand has 1101 states, 1099 states have (on average 1.8252957233848954) internal successors, (2006), 1100 states have internal predecessors, (2006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:57:42,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-16 03:57:42,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:42,685 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] [2024-11-16 03:57:42,686 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:42,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:42,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1631178625, now seen corresponding path program 1 times [2024-11-16 03:57:42,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:42,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236308746] [2024-11-16 03:57:42,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:42,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:42,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:43,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:57:43,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:43,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236308746] [2024-11-16 03:57:43,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236308746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:43,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:57:43,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:57:43,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501095474] [2024-11-16 03:57:43,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:43,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:57:43,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:43,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:57:43,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:57:43,129 INFO L87 Difference]: Start difference. First operand has 1101 states, 1099 states have (on average 1.8252957233848954) internal successors, (2006), 1100 states have internal predecessors, (2006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:57:48,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:57:48,116 INFO L93 Difference]: Finished difference Result 3836 states and 7213 transitions. [2024-11-16 03:57:48,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:57:48,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2024-11-16 03:57:48,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:57:48,136 INFO L225 Difference]: With dead ends: 3836 [2024-11-16 03:57:48,136 INFO L226 Difference]: Without dead ends: 2668 [2024-11-16 03:57:48,140 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 [2024-11-16 03:57:48,142 INFO L432 NwaCegarLoop]: 755 mSDtfsCounter, 2721 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 4246 mSolverCounterSat, 1607 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2721 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 5853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1607 IncrementalHoareTripleChecker+Valid, 4246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:57:48,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2721 Valid, 1057 Invalid, 5853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1607 Valid, 4246 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-16 03:57:48,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2668 states. [2024-11-16 03:57:48,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2668 to 2667. [2024-11-16 03:57:48,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2666 states have (on average 1.4602400600150038) internal successors, (3893), 2666 states have internal predecessors, (3893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:57:48,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 3893 transitions. [2024-11-16 03:57:48,241 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 3893 transitions. Word has length 39 [2024-11-16 03:57:48,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:57:48,242 INFO L471 AbstractCegarLoop]: Abstraction has 2667 states and 3893 transitions. [2024-11-16 03:57:48,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:57:48,242 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 3893 transitions. [2024-11-16 03:57:48,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-16 03:57:48,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:48,245 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:57:48,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 03:57:48,246 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:48,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:48,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1095030814, now seen corresponding path program 1 times [2024-11-16 03:57:48,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:48,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644770416] [2024-11-16 03:57:48,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:48,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:48,493 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:57:48,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:48,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644770416] [2024-11-16 03:57:48,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644770416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:48,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:57:48,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:57:48,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922050947] [2024-11-16 03:57:48,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:48,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:57:48,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:48,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:57:48,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:57:48,499 INFO L87 Difference]: Start difference. First operand 2667 states and 3893 transitions. Second operand has 4 states, 4 states have (on average 41.25) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:57:53,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:57:53,908 INFO L93 Difference]: Finished difference Result 7878 states and 12682 transitions. [2024-11-16 03:57:53,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:57:53,908 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2024-11-16 03:57:53,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:57:53,926 INFO L225 Difference]: With dead ends: 7878 [2024-11-16 03:57:53,927 INFO L226 Difference]: Without dead ends: 6001 [2024-11-16 03:57:53,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:57:53,931 INFO L432 NwaCegarLoop]: 898 mSDtfsCounter, 1644 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 6335 mSolverCounterSat, 829 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1644 SdHoareTripleChecker+Valid, 1200 SdHoareTripleChecker+Invalid, 7164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 829 IncrementalHoareTripleChecker+Valid, 6335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:57:53,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1644 Valid, 1200 Invalid, 7164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [829 Valid, 6335 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-16 03:57:53,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6001 states. [2024-11-16 03:57:53,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6001 to 5867. [2024-11-16 03:57:54,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5867 states, 5866 states have (on average 1.4447664507330378) internal successors, (8475), 5866 states have internal predecessors, (8475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:57:54,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5867 states to 5867 states and 8475 transitions. [2024-11-16 03:57:54,016 INFO L78 Accepts]: Start accepts. Automaton has 5867 states and 8475 transitions. Word has length 165 [2024-11-16 03:57:54,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:57:54,019 INFO L471 AbstractCegarLoop]: Abstraction has 5867 states and 8475 transitions. [2024-11-16 03:57:54,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:57:54,020 INFO L276 IsEmpty]: Start isEmpty. Operand 5867 states and 8475 transitions. [2024-11-16 03:57:54,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-16 03:57:54,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:54,027 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:57:54,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 03:57:54,027 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:54,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:54,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1699516356, now seen corresponding path program 1 times [2024-11-16 03:57:54,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:54,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069827497] [2024-11-16 03:57:54,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:54,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:54,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:54,219 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-16 03:57:54,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:54,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069827497] [2024-11-16 03:57:54,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069827497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:54,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:57:54,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:57:54,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011661449] [2024-11-16 03:57:54,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:54,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:57:54,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:54,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:57:54,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:57:54,221 INFO L87 Difference]: Start difference. First operand 5867 states and 8475 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:57:56,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:57:56,919 INFO L93 Difference]: Finished difference Result 15706 states and 23413 transitions. [2024-11-16 03:57:56,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:57:56,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 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 208 [2024-11-16 03:57:56,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:57:56,949 INFO L225 Difference]: With dead ends: 15706 [2024-11-16 03:57:56,951 INFO L226 Difference]: Without dead ends: 10629 [2024-11-16 03:57:56,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:57:56,961 INFO L432 NwaCegarLoop]: 787 mSDtfsCounter, 919 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 2553 mSolverCounterSat, 757 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 3310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 757 IncrementalHoareTripleChecker+Valid, 2553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:57:56,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [919 Valid, 920 Invalid, 3310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [757 Valid, 2553 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 03:57:56,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10629 states. [2024-11-16 03:57:57,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10629 to 10622. [2024-11-16 03:57:57,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10622 states, 10621 states have (on average 1.3548630072497883) internal successors, (14390), 10621 states have internal predecessors, (14390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:57:57,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10622 states to 10622 states and 14390 transitions. [2024-11-16 03:57:57,114 INFO L78 Accepts]: Start accepts. Automaton has 10622 states and 14390 transitions. Word has length 208 [2024-11-16 03:57:57,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:57:57,117 INFO L471 AbstractCegarLoop]: Abstraction has 10622 states and 14390 transitions. [2024-11-16 03:57:57,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:57:57,117 INFO L276 IsEmpty]: Start isEmpty. Operand 10622 states and 14390 transitions. [2024-11-16 03:57:57,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-16 03:57:57,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:57,119 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:57:57,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 03:57:57,120 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:57,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:57,121 INFO L85 PathProgramCache]: Analyzing trace with hash -497529237, now seen corresponding path program 1 times [2024-11-16 03:57:57,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:57,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932908380] [2024-11-16 03:57:57,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:57,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:57,304 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-16 03:57:57,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:57,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932908380] [2024-11-16 03:57:57,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932908380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:57,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:57:57,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:57:57,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300884480] [2024-11-16 03:57:57,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:57,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:57:57,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:57,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:57:57,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:57:57,308 INFO L87 Difference]: Start difference. First operand 10622 states and 14390 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:00,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:00,579 INFO L93 Difference]: Finished difference Result 28386 states and 39282 transitions. [2024-11-16 03:58:00,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:00,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 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 222 [2024-11-16 03:58:00,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:00,625 INFO L225 Difference]: With dead ends: 28386 [2024-11-16 03:58:00,625 INFO L226 Difference]: Without dead ends: 18554 [2024-11-16 03:58:00,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:00,635 INFO L432 NwaCegarLoop]: 453 mSDtfsCounter, 907 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 2871 mSolverCounterSat, 545 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 3416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 545 IncrementalHoareTripleChecker+Valid, 2871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:00,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [907 Valid, 620 Invalid, 3416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [545 Valid, 2871 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-16 03:58:00,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18554 states. [2024-11-16 03:58:00,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18554 to 18547. [2024-11-16 03:58:00,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18547 states, 18546 states have (on average 1.3247061360940364) internal successors, (24568), 18546 states have internal predecessors, (24568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:00,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18547 states to 18547 states and 24568 transitions. [2024-11-16 03:58:00,836 INFO L78 Accepts]: Start accepts. Automaton has 18547 states and 24568 transitions. Word has length 222 [2024-11-16 03:58:00,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:00,837 INFO L471 AbstractCegarLoop]: Abstraction has 18547 states and 24568 transitions. [2024-11-16 03:58:00,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:00,838 INFO L276 IsEmpty]: Start isEmpty. Operand 18547 states and 24568 transitions. [2024-11-16 03:58:00,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-11-16 03:58:00,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:00,840 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:58:00,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 03:58:00,840 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:00,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:00,842 INFO L85 PathProgramCache]: Analyzing trace with hash -311271474, now seen corresponding path program 1 times [2024-11-16 03:58:00,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:00,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378719845] [2024-11-16 03:58:00,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:00,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:01,111 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:58:01,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:01,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378719845] [2024-11-16 03:58:01,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378719845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:01,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:01,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:58:01,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910006160] [2024-11-16 03:58:01,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:01,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:01,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:01,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:01,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:01,115 INFO L87 Difference]: Start difference. First operand 18547 states and 24568 transitions. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:03,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:03,807 INFO L93 Difference]: Finished difference Result 52082 states and 69866 transitions. [2024-11-16 03:58:03,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:03,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 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 248 [2024-11-16 03:58:03,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:03,855 INFO L225 Difference]: With dead ends: 52082 [2024-11-16 03:58:03,856 INFO L226 Difference]: Without dead ends: 34325 [2024-11-16 03:58:03,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:03,872 INFO L432 NwaCegarLoop]: 830 mSDtfsCounter, 846 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 2393 mSolverCounterSat, 915 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 3308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 915 IncrementalHoareTripleChecker+Valid, 2393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:03,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 949 Invalid, 3308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [915 Valid, 2393 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 03:58:03,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34325 states. [2024-11-16 03:58:04,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34325 to 34315. [2024-11-16 03:58:04,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34315 states, 34314 states have (on average 1.2547065337763013) internal successors, (43054), 34314 states have internal predecessors, (43054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:04,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34315 states to 34315 states and 43054 transitions. [2024-11-16 03:58:04,191 INFO L78 Accepts]: Start accepts. Automaton has 34315 states and 43054 transitions. Word has length 248 [2024-11-16 03:58:04,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:04,192 INFO L471 AbstractCegarLoop]: Abstraction has 34315 states and 43054 transitions. [2024-11-16 03:58:04,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:04,192 INFO L276 IsEmpty]: Start isEmpty. Operand 34315 states and 43054 transitions. [2024-11-16 03:58:04,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-16 03:58:04,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:04,195 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:58:04,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 03:58:04,195 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:04,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:04,195 INFO L85 PathProgramCache]: Analyzing trace with hash 287491832, now seen corresponding path program 1 times [2024-11-16 03:58:04,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:04,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022908573] [2024-11-16 03:58:04,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:04,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:04,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:04,331 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:58:04,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:04,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022908573] [2024-11-16 03:58:04,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022908573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:04,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:04,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:58:04,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974291178] [2024-11-16 03:58:04,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:04,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:04,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:04,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:04,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:04,333 INFO L87 Difference]: Start difference. First operand 34315 states and 43054 transitions. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:06,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:06,859 INFO L93 Difference]: Finished difference Result 81257 states and 101296 transitions. [2024-11-16 03:58:06,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:06,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 262 [2024-11-16 03:58:06,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:06,926 INFO L225 Difference]: With dead ends: 81257 [2024-11-16 03:58:06,926 INFO L226 Difference]: Without dead ends: 47732 [2024-11-16 03:58:06,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:06,959 INFO L432 NwaCegarLoop]: 1399 mSDtfsCounter, 974 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 2491 mSolverCounterSat, 678 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 1453 SdHoareTripleChecker+Invalid, 3169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 678 IncrementalHoareTripleChecker+Valid, 2491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:06,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 1453 Invalid, 3169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [678 Valid, 2491 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-16 03:58:06,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47732 states. [2024-11-16 03:58:07,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47732 to 47710. [2024-11-16 03:58:07,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47710 states, 47709 states have (on average 1.208052987905846) internal successors, (57635), 47709 states have internal predecessors, (57635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:07,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47710 states to 47710 states and 57635 transitions. [2024-11-16 03:58:07,367 INFO L78 Accepts]: Start accepts. Automaton has 47710 states and 57635 transitions. Word has length 262 [2024-11-16 03:58:07,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:07,367 INFO L471 AbstractCegarLoop]: Abstraction has 47710 states and 57635 transitions. [2024-11-16 03:58:07,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:07,368 INFO L276 IsEmpty]: Start isEmpty. Operand 47710 states and 57635 transitions. [2024-11-16 03:58:07,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-16 03:58:07,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:07,372 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 03:58:07,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 03:58:07,372 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:07,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:07,373 INFO L85 PathProgramCache]: Analyzing trace with hash -650848445, now seen corresponding path program 1 times [2024-11-16 03:58:07,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:07,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408181630] [2024-11-16 03:58:07,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:07,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:07,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:07,674 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 361 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-16 03:58:07,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:07,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408181630] [2024-11-16 03:58:07,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408181630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:07,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:07,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:58:07,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744954851] [2024-11-16 03:58:07,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:07,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:58:07,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:07,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:58:07,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:58:07,677 INFO L87 Difference]: Start difference. First operand 47710 states and 57635 transitions. Second operand has 4 states, 4 states have (on average 75.25) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:12,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:12,800 INFO L93 Difference]: Finished difference Result 127956 states and 156640 transitions. [2024-11-16 03:58:12,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:58:12,801 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 75.25) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 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 336 [2024-11-16 03:58:12,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:12,887 INFO L225 Difference]: With dead ends: 127956 [2024-11-16 03:58:12,887 INFO L226 Difference]: Without dead ends: 81036 [2024-11-16 03:58:12,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:58:12,903 INFO L432 NwaCegarLoop]: 549 mSDtfsCounter, 1742 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 6064 mSolverCounterSat, 1187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1742 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 7251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1187 IncrementalHoareTripleChecker+Valid, 6064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:12,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1742 Valid, 756 Invalid, 7251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1187 Valid, 6064 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-16 03:58:12,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81036 states. [2024-11-16 03:58:13,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81036 to 80909. [2024-11-16 03:58:13,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80909 states, 80908 states have (on average 1.2054926583279775) internal successors, (97534), 80908 states have internal predecessors, (97534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:13,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80909 states to 80909 states and 97534 transitions. [2024-11-16 03:58:13,537 INFO L78 Accepts]: Start accepts. Automaton has 80909 states and 97534 transitions. Word has length 336 [2024-11-16 03:58:13,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:13,538 INFO L471 AbstractCegarLoop]: Abstraction has 80909 states and 97534 transitions. [2024-11-16 03:58:13,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.25) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:13,538 INFO L276 IsEmpty]: Start isEmpty. Operand 80909 states and 97534 transitions. [2024-11-16 03:58:13,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2024-11-16 03:58:13,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:13,542 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:58:13,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 03:58:13,543 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:13,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:13,543 INFO L85 PathProgramCache]: Analyzing trace with hash -47214614, now seen corresponding path program 1 times [2024-11-16 03:58:13,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:13,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899147226] [2024-11-16 03:58:13,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:13,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:13,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:13,999 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 293 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-11-16 03:58:13,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:13,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899147226] [2024-11-16 03:58:13,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899147226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:13,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:13,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:58:14,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914242923] [2024-11-16 03:58:14,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:14,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:14,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:14,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:14,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:14,002 INFO L87 Difference]: Start difference. First operand 80909 states and 97534 transitions. Second operand has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:16,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:16,961 INFO L93 Difference]: Finished difference Result 183104 states and 223674 transitions. [2024-11-16 03:58:16,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:16,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 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 338 [2024-11-16 03:58:16,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:17,101 INFO L225 Difference]: With dead ends: 183104 [2024-11-16 03:58:17,101 INFO L226 Difference]: Without dead ends: 102985 [2024-11-16 03:58:17,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:17,152 INFO L432 NwaCegarLoop]: 774 mSDtfsCounter, 916 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 2405 mSolverCounterSat, 917 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 3322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 917 IncrementalHoareTripleChecker+Valid, 2405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:17,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [916 Valid, 860 Invalid, 3322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [917 Valid, 2405 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 03:58:17,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102985 states. [2024-11-16 03:58:18,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102985 to 102964. [2024-11-16 03:58:18,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102964 states, 102963 states have (on average 1.2051513650534658) internal successors, (124086), 102963 states have internal predecessors, (124086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:18,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102964 states to 102964 states and 124086 transitions. [2024-11-16 03:58:18,340 INFO L78 Accepts]: Start accepts. Automaton has 102964 states and 124086 transitions. Word has length 338 [2024-11-16 03:58:18,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:18,340 INFO L471 AbstractCegarLoop]: Abstraction has 102964 states and 124086 transitions. [2024-11-16 03:58:18,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:18,340 INFO L276 IsEmpty]: Start isEmpty. Operand 102964 states and 124086 transitions. [2024-11-16 03:58:18,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2024-11-16 03:58:18,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:18,345 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:58:18,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 03:58:18,345 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:18,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:18,346 INFO L85 PathProgramCache]: Analyzing trace with hash -676787802, now seen corresponding path program 1 times [2024-11-16 03:58:18,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:18,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276525533] [2024-11-16 03:58:18,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:18,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:18,658 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:58:18,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:18,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276525533] [2024-11-16 03:58:18,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276525533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:18,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:18,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:58:18,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798460733] [2024-11-16 03:58:18,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:18,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:18,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:18,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:18,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:18,664 INFO L87 Difference]: Start difference. First operand 102964 states and 124086 transitions. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:22,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:22,292 INFO L93 Difference]: Finished difference Result 204324 states and 246368 transitions. [2024-11-16 03:58:22,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:22,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 344 [2024-11-16 03:58:22,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:22,419 INFO L225 Difference]: With dead ends: 204324 [2024-11-16 03:58:22,419 INFO L226 Difference]: Without dead ends: 102150 [2024-11-16 03:58:22,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:22,454 INFO L432 NwaCegarLoop]: 1525 mSDtfsCounter, 944 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 2354 mSolverCounterSat, 594 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 944 SdHoareTripleChecker+Valid, 1670 SdHoareTripleChecker+Invalid, 2948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 594 IncrementalHoareTripleChecker+Valid, 2354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:22,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [944 Valid, 1670 Invalid, 2948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [594 Valid, 2354 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-16 03:58:22,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102150 states. [2024-11-16 03:58:23,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102150 to 102141. [2024-11-16 03:58:23,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102141 states, 102140 states have (on average 1.1383689054239279) internal successors, (116273), 102140 states have internal predecessors, (116273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:23,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102141 states to 102141 states and 116273 transitions. [2024-11-16 03:58:23,651 INFO L78 Accepts]: Start accepts. Automaton has 102141 states and 116273 transitions. Word has length 344 [2024-11-16 03:58:23,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:23,651 INFO L471 AbstractCegarLoop]: Abstraction has 102141 states and 116273 transitions. [2024-11-16 03:58:23,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:23,652 INFO L276 IsEmpty]: Start isEmpty. Operand 102141 states and 116273 transitions. [2024-11-16 03:58:23,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-11-16 03:58:23,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:23,657 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:58:23,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 03:58:23,657 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:23,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:23,660 INFO L85 PathProgramCache]: Analyzing trace with hash 897474037, now seen corresponding path program 1 times [2024-11-16 03:58:23,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:23,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948140786] [2024-11-16 03:58:23,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:23,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:23,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:24,046 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 361 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-16 03:58:24,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:24,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948140786] [2024-11-16 03:58:24,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948140786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:24,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:24,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:58:24,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698027388] [2024-11-16 03:58:24,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:24,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:24,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:24,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:24,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:24,049 INFO L87 Difference]: Start difference. First operand 102141 states and 116273 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:27,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:27,037 INFO L93 Difference]: Finished difference Result 188551 states and 216020 transitions. [2024-11-16 03:58:27,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:27,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 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 351 [2024-11-16 03:58:27,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:27,158 INFO L225 Difference]: With dead ends: 188551 [2024-11-16 03:58:27,158 INFO L226 Difference]: Without dead ends: 102183 [2024-11-16 03:58:27,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:27,204 INFO L432 NwaCegarLoop]: 1876 mSDtfsCounter, 741 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 2620 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 2018 SdHoareTripleChecker+Invalid, 2829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 2620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:27,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 2018 Invalid, 2829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 2620 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 03:58:27,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102183 states. [2024-11-16 03:58:28,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102183 to 102142. [2024-11-16 03:58:28,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102142 states, 102141 states have (on average 1.1323954141823558) internal successors, (115664), 102141 states have internal predecessors, (115664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:28,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102142 states to 102142 states and 115664 transitions. [2024-11-16 03:58:28,351 INFO L78 Accepts]: Start accepts. Automaton has 102142 states and 115664 transitions. Word has length 351 [2024-11-16 03:58:28,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:28,351 INFO L471 AbstractCegarLoop]: Abstraction has 102142 states and 115664 transitions. [2024-11-16 03:58:28,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:28,352 INFO L276 IsEmpty]: Start isEmpty. Operand 102142 states and 115664 transitions. [2024-11-16 03:58:28,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2024-11-16 03:58:28,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:28,356 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:58:28,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 03:58:28,356 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:28,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:28,356 INFO L85 PathProgramCache]: Analyzing trace with hash 628809591, now seen corresponding path program 1 times [2024-11-16 03:58:28,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:28,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396571725] [2024-11-16 03:58:28,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:28,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:28,781 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 262 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-11-16 03:58:28,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:28,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396571725] [2024-11-16 03:58:28,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396571725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:28,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:28,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:58:28,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968563341] [2024-11-16 03:58:28,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:28,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:28,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:28,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:28,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:28,787 INFO L87 Difference]: Start difference. First operand 102142 states and 115664 transitions. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:32,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:32,043 INFO L93 Difference]: Finished difference Result 268090 states and 305451 transitions. [2024-11-16 03:58:32,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:32,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 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 374 [2024-11-16 03:58:32,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:32,233 INFO L225 Difference]: With dead ends: 268090 [2024-11-16 03:58:32,234 INFO L226 Difference]: Without dead ends: 162793 [2024-11-16 03:58:32,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:32,493 INFO L432 NwaCegarLoop]: 924 mSDtfsCounter, 811 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 2367 mSolverCounterSat, 862 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 3229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 862 IncrementalHoareTripleChecker+Valid, 2367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:32,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 1059 Invalid, 3229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [862 Valid, 2367 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 03:58:32,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162793 states. [2024-11-16 03:58:33,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162793 to 152531. [2024-11-16 03:58:33,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152531 states, 152530 states have (on average 1.1071920277978102) internal successors, (168880), 152530 states have internal predecessors, (168880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:34,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152531 states to 152531 states and 168880 transitions. [2024-11-16 03:58:34,102 INFO L78 Accepts]: Start accepts. Automaton has 152531 states and 168880 transitions. Word has length 374 [2024-11-16 03:58:34,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:34,102 INFO L471 AbstractCegarLoop]: Abstraction has 152531 states and 168880 transitions. [2024-11-16 03:58:34,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:34,103 INFO L276 IsEmpty]: Start isEmpty. Operand 152531 states and 168880 transitions. [2024-11-16 03:58:34,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2024-11-16 03:58:34,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:34,106 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:58:34,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 03:58:34,106 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:34,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:34,106 INFO L85 PathProgramCache]: Analyzing trace with hash 428970256, now seen corresponding path program 1 times [2024-11-16 03:58:34,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:34,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745439450] [2024-11-16 03:58:34,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:34,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:35,622 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 266 proven. 114 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-16 03:58:35,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:35,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745439450] [2024-11-16 03:58:35,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745439450] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:58:35,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049309377] [2024-11-16 03:58:35,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:35,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:58:35,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:58:35,625 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:58:35,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 03:58:35,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:35,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:58:35,767 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:58:35,897 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 302 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-16 03:58:35,897 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:58:35,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049309377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:35,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:58:35,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-11-16 03:58:35,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924113855] [2024-11-16 03:58:35,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:35,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:35,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:35,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:35,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-16 03:58:35,899 INFO L87 Difference]: Start difference. First operand 152531 states and 168880 transitions. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:38,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:38,831 INFO L93 Difference]: Finished difference Result 301905 states and 334200 transitions. [2024-11-16 03:58:38,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:38,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 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 380 [2024-11-16 03:58:38,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:38,980 INFO L225 Difference]: With dead ends: 301905 [2024-11-16 03:58:38,980 INFO L226 Difference]: Without dead ends: 150164 [2024-11-16 03:58:39,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-16 03:58:39,037 INFO L432 NwaCegarLoop]: 1342 mSDtfsCounter, 1100 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 2449 mSolverCounterSat, 441 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1100 SdHoareTripleChecker+Valid, 1423 SdHoareTripleChecker+Invalid, 2890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 441 IncrementalHoareTripleChecker+Valid, 2449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:39,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1100 Valid, 1423 Invalid, 2890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [441 Valid, 2449 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 03:58:39,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150164 states. [2024-11-16 03:58:40,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150164 to 149371. [2024-11-16 03:58:40,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149371 states, 149370 states have (on average 1.0812077391711856) internal successors, (161500), 149370 states have internal predecessors, (161500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:40,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149371 states to 149371 states and 161500 transitions. [2024-11-16 03:58:40,869 INFO L78 Accepts]: Start accepts. Automaton has 149371 states and 161500 transitions. Word has length 380 [2024-11-16 03:58:40,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:40,870 INFO L471 AbstractCegarLoop]: Abstraction has 149371 states and 161500 transitions. [2024-11-16 03:58:40,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:40,870 INFO L276 IsEmpty]: Start isEmpty. Operand 149371 states and 161500 transitions. [2024-11-16 03:58:40,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2024-11-16 03:58:40,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:40,875 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:58:40,887 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 03:58:41,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-16 03:58:41,076 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:41,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:41,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1065640469, now seen corresponding path program 1 times [2024-11-16 03:58:41,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:41,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924712855] [2024-11-16 03:58:41,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:41,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:41,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:41,818 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-16 03:58:41,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:41,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924712855] [2024-11-16 03:58:41,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924712855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:41,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:41,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:58:41,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732157949] [2024-11-16 03:58:41,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:41,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:41,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:41,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:41,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:41,824 INFO L87 Difference]: Start difference. First operand 149371 states and 161500 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:45,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:45,318 INFO L93 Difference]: Finished difference Result 318511 states and 344227 transitions. [2024-11-16 03:58:45,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:45,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 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 398 [2024-11-16 03:58:45,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:45,504 INFO L225 Difference]: With dead ends: 318511 [2024-11-16 03:58:45,504 INFO L226 Difference]: Without dead ends: 169930 [2024-11-16 03:58:45,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:45,559 INFO L432 NwaCegarLoop]: 1663 mSDtfsCounter, 844 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2916 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 3296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 2916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:45,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 1792 Invalid, 3296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 2916 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-16 03:58:45,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169930 states. [2024-11-16 03:58:47,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169930 to 158836. [2024-11-16 03:58:47,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158836 states, 158835 states have (on average 1.0774388516384927) internal successors, (171135), 158835 states have internal predecessors, (171135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:47,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158836 states to 158836 states and 171135 transitions. [2024-11-16 03:58:47,460 INFO L78 Accepts]: Start accepts. Automaton has 158836 states and 171135 transitions. Word has length 398 [2024-11-16 03:58:47,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:47,461 INFO L471 AbstractCegarLoop]: Abstraction has 158836 states and 171135 transitions. [2024-11-16 03:58:47,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:47,461 INFO L276 IsEmpty]: Start isEmpty. Operand 158836 states and 171135 transitions. [2024-11-16 03:58:47,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2024-11-16 03:58:47,472 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:47,472 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-16 03:58:47,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 03:58:47,473 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:47,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:47,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1202777733, now seen corresponding path program 1 times [2024-11-16 03:58:47,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:47,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378572663] [2024-11-16 03:58:47,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:47,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:47,806 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 445 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2024-11-16 03:58:47,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:47,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378572663] [2024-11-16 03:58:47,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378572663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:47,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:47,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:58:47,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335371725] [2024-11-16 03:58:47,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:47,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:47,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:47,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:47,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:47,809 INFO L87 Difference]: Start difference. First operand 158836 states and 171135 transitions. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:51,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:51,458 INFO L93 Difference]: Finished difference Result 351574 states and 380336 transitions. [2024-11-16 03:58:51,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:51,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 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 474 [2024-11-16 03:58:51,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:51,677 INFO L225 Difference]: With dead ends: 351574 [2024-11-16 03:58:51,677 INFO L226 Difference]: Without dead ends: 191952 [2024-11-16 03:58:51,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:51,748 INFO L432 NwaCegarLoop]: 1739 mSDtfsCounter, 745 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 2518 mSolverCounterSat, 616 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 1885 SdHoareTripleChecker+Invalid, 3134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 616 IncrementalHoareTripleChecker+Valid, 2518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:51,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 1885 Invalid, 3134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [616 Valid, 2518 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 03:58:51,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191952 states. [2024-11-16 03:58:53,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191952 to 188781. [2024-11-16 03:58:53,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188781 states, 188780 states have (on average 1.0685930712999259) internal successors, (201729), 188780 states have internal predecessors, (201729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:54,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188781 states to 188781 states and 201729 transitions. [2024-11-16 03:58:54,021 INFO L78 Accepts]: Start accepts. Automaton has 188781 states and 201729 transitions. Word has length 474 [2024-11-16 03:58:54,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:54,022 INFO L471 AbstractCegarLoop]: Abstraction has 188781 states and 201729 transitions. [2024-11-16 03:58:54,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:54,022 INFO L276 IsEmpty]: Start isEmpty. Operand 188781 states and 201729 transitions. [2024-11-16 03:58:54,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2024-11-16 03:58:54,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:54,036 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:58:54,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 03:58:54,036 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:54,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:54,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1508069816, now seen corresponding path program 1 times [2024-11-16 03:58:54,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:54,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323827285] [2024-11-16 03:58:54,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:54,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:54,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:54,943 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 373 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-11-16 03:58:54,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:54,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323827285] [2024-11-16 03:58:54,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323827285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:54,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:54,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:58:54,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031214670] [2024-11-16 03:58:54,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:54,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:54,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:54,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:54,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:54,945 INFO L87 Difference]: Start difference. First operand 188781 states and 201729 transitions. Second operand has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:57,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:57,963 INFO L93 Difference]: Finished difference Result 365692 states and 391860 transitions. [2024-11-16 03:58:57,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:57,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 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 499 [2024-11-16 03:58:57,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:58,186 INFO L225 Difference]: With dead ends: 365692 [2024-11-16 03:58:58,187 INFO L226 Difference]: Without dead ends: 196619