./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem12_label04.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/Problem12_label04.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 33de5d7f20015c0808aeb1de8a96a544518a9ee4634466bd76c0c961f4a657cf --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 03:52:04,046 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 03:52:04,111 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 03:52:04,117 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 03:52:04,118 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 03:52:04,160 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 03:52:04,161 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 03:52:04,161 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 03:52:04,162 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 03:52:04,166 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 03:52:04,166 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 03:52:04,166 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 03:52:04,167 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 03:52:04,167 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 03:52:04,167 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 03:52:04,168 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 03:52:04,168 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 03:52:04,168 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 03:52:04,169 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 03:52:04,171 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 03:52:04,171 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 03:52:04,172 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 03:52:04,172 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 03:52:04,172 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 03:52:04,172 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 03:52:04,173 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 03:52:04,173 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 03:52:04,173 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 03:52:04,173 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 03:52:04,174 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 03:52:04,174 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 03:52:04,174 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 03:52:04,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:52:04,175 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 03:52:04,175 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 03:52:04,175 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 03:52:04,175 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 03:52:04,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 03:52:04,176 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 03:52:04,177 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 03:52:04,177 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 03:52:04,178 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 03:52:04,178 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33de5d7f20015c0808aeb1de8a96a544518a9ee4634466bd76c0c961f4a657cf [2024-11-16 03:52:04,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 03:52:04,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 03:52:04,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 03:52:04,456 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 03:52:04,458 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 03:52:04,459 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem12_label04.c [2024-11-16 03:52:05,979 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 03:52:06,437 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 03:52:06,439 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label04.c [2024-11-16 03:52:06,474 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03fa428d9/91d3481065254ec59bc39f8d0eec49f4/FLAGbec340a00 [2024-11-16 03:52:06,491 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03fa428d9/91d3481065254ec59bc39f8d0eec49f4 [2024-11-16 03:52:06,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 03:52:06,496 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 03:52:06,498 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 03:52:06,499 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 03:52:06,505 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 03:52:06,505 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:52:06" (1/1) ... [2024-11-16 03:52:06,506 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74d79a81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:06, skipping insertion in model container [2024-11-16 03:52:06,506 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:52:06" (1/1) ... [2024-11-16 03:52:06,626 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 03:52:06,924 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/Problem12_label04.c[7422,7435] [2024-11-16 03:52:07,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:52:07,646 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 03:52:07,714 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/Problem12_label04.c[7422,7435] [2024-11-16 03:52:08,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:52:08,093 INFO L204 MainTranslator]: Completed translation [2024-11-16 03:52:08,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:08 WrapperNode [2024-11-16 03:52:08,095 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 03:52:08,096 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 03:52:08,096 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 03:52:08,096 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 03:52:08,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:08" (1/1) ... [2024-11-16 03:52:08,156 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:08" (1/1) ... [2024-11-16 03:52:08,485 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4760 [2024-11-16 03:52:08,485 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 03:52:08,485 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 03:52:08,486 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 03:52:08,486 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 03:52:08,494 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:08" (1/1) ... [2024-11-16 03:52:08,494 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:08" (1/1) ... [2024-11-16 03:52:08,541 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:08" (1/1) ... [2024-11-16 03:52:08,781 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 03:52:08,782 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:08" (1/1) ... [2024-11-16 03:52:08,782 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:08" (1/1) ... [2024-11-16 03:52:08,969 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:08" (1/1) ... [2024-11-16 03:52:08,982 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:08" (1/1) ... [2024-11-16 03:52:09,001 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:08" (1/1) ... [2024-11-16 03:52:09,019 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:08" (1/1) ... [2024-11-16 03:52:09,073 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 03:52:09,075 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 03:52:09,075 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 03:52:09,076 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 03:52:09,077 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:08" (1/1) ... [2024-11-16 03:52:09,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:52:09,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:52:09,144 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 03:52:09,150 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 03:52:09,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 03:52:09,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 03:52:09,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 03:52:09,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 03:52:09,252 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 03:52:09,254 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 03:52:13,310 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4665: havoc calculate_output3_#t~ret11#1; [2024-11-16 03:52:13,310 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1696: havoc calculate_output_#t~ret9#1; [2024-11-16 03:52:13,310 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3175: havoc calculate_output2_#t~ret10#1; [2024-11-16 03:52:13,471 INFO L? ?]: Removed 702 outVars from TransFormulas that were not future-live. [2024-11-16 03:52:13,471 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 03:52:13,509 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 03:52:13,511 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 03:52:13,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:52:13 BoogieIcfgContainer [2024-11-16 03:52:13,512 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 03:52:13,514 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 03:52:13,515 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 03:52:13,518 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 03:52:13,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:52:06" (1/3) ... [2024-11-16 03:52:13,519 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a4f107c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:52:13, skipping insertion in model container [2024-11-16 03:52:13,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:08" (2/3) ... [2024-11-16 03:52:13,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a4f107c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:52:13, skipping insertion in model container [2024-11-16 03:52:13,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:52:13" (3/3) ... [2024-11-16 03:52:13,523 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label04.c [2024-11-16 03:52:13,576 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 03:52:13,577 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 03:52:13,675 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 03:52:13,684 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;@50842f7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 03:52:13,684 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 03:52:13,693 INFO L276 IsEmpty]: Start isEmpty. Operand has 821 states, 819 states have (on average 1.9145299145299146) internal successors, (1568), 820 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:13,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-16 03:52:13,703 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:13,704 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:13,704 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:13,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:13,708 INFO L85 PathProgramCache]: Analyzing trace with hash -2131453721, now seen corresponding path program 1 times [2024-11-16 03:52:13,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:13,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350516896] [2024-11-16 03:52:13,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:13,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:14,096 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 03:52:14,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:14,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350516896] [2024-11-16 03:52:14,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350516896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:14,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:14,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:52:14,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075937605] [2024-11-16 03:52:14,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:14,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:14,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:14,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:14,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:14,130 INFO L87 Difference]: Start difference. First operand has 821 states, 819 states have (on average 1.9145299145299146) internal successors, (1568), 820 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:17,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:17,543 INFO L93 Difference]: Finished difference Result 2410 states and 4651 transitions. [2024-11-16 03:52:17,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:17,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-16 03:52:17,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:17,574 INFO L225 Difference]: With dead ends: 2410 [2024-11-16 03:52:17,574 INFO L226 Difference]: Without dead ends: 1509 [2024-11-16 03:52:17,586 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 03:52:17,591 INFO L432 NwaCegarLoop]: 517 mSDtfsCounter, 760 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 696 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 3033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 696 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:17,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 529 Invalid, 3033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [696 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-16 03:52:17,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2024-11-16 03:52:17,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1509. [2024-11-16 03:52:17,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1508 states have (on average 1.6054376657824934) internal successors, (2421), 1508 states have internal predecessors, (2421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:17,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 2421 transitions. [2024-11-16 03:52:17,727 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 2421 transitions. Word has length 62 [2024-11-16 03:52:17,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:17,728 INFO L471 AbstractCegarLoop]: Abstraction has 1509 states and 2421 transitions. [2024-11-16 03:52:17,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:17,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 2421 transitions. [2024-11-16 03:52:17,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-16 03:52:17,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:17,735 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:52:17,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 03:52:17,736 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:17,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:17,737 INFO L85 PathProgramCache]: Analyzing trace with hash 654850475, now seen corresponding path program 1 times [2024-11-16 03:52:17,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:17,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84338124] [2024-11-16 03:52:17,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:17,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:17,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:17,984 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:52:17,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:17,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84338124] [2024-11-16 03:52:17,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84338124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:17,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:17,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:52:17,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610551659] [2024-11-16 03:52:17,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:17,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:17,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:17,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:17,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:17,991 INFO L87 Difference]: Start difference. First operand 1509 states and 2421 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 03:52:21,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:21,176 INFO L93 Difference]: Finished difference Result 4523 states and 7259 transitions. [2024-11-16 03:52:21,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:21,177 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 138 [2024-11-16 03:52:21,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:21,188 INFO L225 Difference]: With dead ends: 4523 [2024-11-16 03:52:21,188 INFO L226 Difference]: Without dead ends: 3016 [2024-11-16 03:52:21,191 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 03:52:21,192 INFO L432 NwaCegarLoop]: 579 mSDtfsCounter, 917 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2380 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 2930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 2380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:21,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [917 Valid, 588 Invalid, 2930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 2380 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-16 03:52:21,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3016 states. [2024-11-16 03:52:21,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3016 to 3013. [2024-11-16 03:52:21,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3013 states, 3012 states have (on average 1.4588313413014609) internal successors, (4394), 3012 states have internal predecessors, (4394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:21,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3013 states to 3013 states and 4394 transitions. [2024-11-16 03:52:21,248 INFO L78 Accepts]: Start accepts. Automaton has 3013 states and 4394 transitions. Word has length 138 [2024-11-16 03:52:21,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:21,249 INFO L471 AbstractCegarLoop]: Abstraction has 3013 states and 4394 transitions. [2024-11-16 03:52:21,249 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 03:52:21,249 INFO L276 IsEmpty]: Start isEmpty. Operand 3013 states and 4394 transitions. [2024-11-16 03:52:21,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-16 03:52:21,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:21,252 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:21,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 03:52:21,253 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:21,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:21,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1436560793, now seen corresponding path program 1 times [2024-11-16 03:52:21,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:21,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561169168] [2024-11-16 03:52:21,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:21,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:21,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:21,561 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:52:21,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:21,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561169168] [2024-11-16 03:52:21,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561169168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:21,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:21,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:52:21,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165168497] [2024-11-16 03:52:21,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:21,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:21,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:21,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:21,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:21,567 INFO L87 Difference]: Start difference. First operand 3013 states and 4394 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:24,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:24,212 INFO L93 Difference]: Finished difference Result 9032 states and 13176 transitions. [2024-11-16 03:52:24,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:24,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 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 167 [2024-11-16 03:52:24,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:24,233 INFO L225 Difference]: With dead ends: 9032 [2024-11-16 03:52:24,233 INFO L226 Difference]: Without dead ends: 6021 [2024-11-16 03:52:24,238 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 03:52:24,239 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 746 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 935 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 2930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 935 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:24,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [746 Valid, 450 Invalid, 2930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [935 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 03:52:24,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6021 states. [2024-11-16 03:52:24,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6021 to 6021. [2024-11-16 03:52:24,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6021 states, 6020 states have (on average 1.2946843853820598) internal successors, (7794), 6020 states have internal predecessors, (7794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:24,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6021 states to 6021 states and 7794 transitions. [2024-11-16 03:52:24,338 INFO L78 Accepts]: Start accepts. Automaton has 6021 states and 7794 transitions. Word has length 167 [2024-11-16 03:52:24,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:24,338 INFO L471 AbstractCegarLoop]: Abstraction has 6021 states and 7794 transitions. [2024-11-16 03:52:24,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:24,339 INFO L276 IsEmpty]: Start isEmpty. Operand 6021 states and 7794 transitions. [2024-11-16 03:52:24,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-16 03:52:24,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:24,341 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:24,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 03:52:24,342 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:24,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:24,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1473345018, now seen corresponding path program 1 times [2024-11-16 03:52:24,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:24,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324885641] [2024-11-16 03:52:24,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:24,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:24,925 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 03:52:24,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:24,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324885641] [2024-11-16 03:52:24,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324885641] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:52:24,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167845432] [2024-11-16 03:52:24,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:24,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:52:24,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:52:24,931 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 03:52:24,932 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 03:52:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:25,061 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:52:25,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:52:25,354 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-16 03:52:25,354 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:52:25,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167845432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:25,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:52:25,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-16 03:52:25,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451833447] [2024-11-16 03:52:25,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:25,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:25,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:25,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:25,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:52:25,358 INFO L87 Difference]: Start difference. First operand 6021 states and 7794 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:27,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:27,785 INFO L93 Difference]: Finished difference Result 15048 states and 18986 transitions. [2024-11-16 03:52:27,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:27,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 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 204 [2024-11-16 03:52:27,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:27,814 INFO L225 Difference]: With dead ends: 15048 [2024-11-16 03:52:27,815 INFO L226 Difference]: Without dead ends: 9029 [2024-11-16 03:52:27,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:52:27,826 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 689 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2418 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 2852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 2418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:27,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 234 Invalid, 2852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 2418 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-16 03:52:27,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9029 states. [2024-11-16 03:52:27,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9029 to 8277. [2024-11-16 03:52:27,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8277 states, 8276 states have (on average 1.2278878685355243) internal successors, (10162), 8276 states have internal predecessors, (10162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:27,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8277 states to 8277 states and 10162 transitions. [2024-11-16 03:52:27,995 INFO L78 Accepts]: Start accepts. Automaton has 8277 states and 10162 transitions. Word has length 204 [2024-11-16 03:52:27,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:27,996 INFO L471 AbstractCegarLoop]: Abstraction has 8277 states and 10162 transitions. [2024-11-16 03:52:27,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:27,997 INFO L276 IsEmpty]: Start isEmpty. Operand 8277 states and 10162 transitions. [2024-11-16 03:52:28,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-16 03:52:28,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:28,002 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 03:52:28,027 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 03:52:28,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:52:28,203 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:28,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:28,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1739315756, now seen corresponding path program 1 times [2024-11-16 03:52:28,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:28,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51966252] [2024-11-16 03:52:28,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:28,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:28,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:28,650 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-16 03:52:28,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:28,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51966252] [2024-11-16 03:52:28,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51966252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:28,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:28,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:28,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208947683] [2024-11-16 03:52:28,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:28,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:52:28,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:28,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:52:28,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:52:28,653 INFO L87 Difference]: Start difference. First operand 8277 states and 10162 transitions. Second operand has 4 states, 4 states have (on average 51.5) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:31,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:31,665 INFO L93 Difference]: Finished difference Result 16631 states and 20400 transitions. [2024-11-16 03:52:31,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:52:31,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.5) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 276 [2024-11-16 03:52:31,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:31,692 INFO L225 Difference]: With dead ends: 16631 [2024-11-16 03:52:31,692 INFO L226 Difference]: Without dead ends: 8280 [2024-11-16 03:52:31,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:52:31,705 INFO L432 NwaCegarLoop]: 354 mSDtfsCounter, 853 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 3408 mSolverCounterSat, 343 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 853 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 3751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 343 IncrementalHoareTripleChecker+Valid, 3408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:31,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [853 Valid, 373 Invalid, 3751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [343 Valid, 3408 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-16 03:52:31,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8280 states. [2024-11-16 03:52:31,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8280 to 8277. [2024-11-16 03:52:31,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8277 states, 8276 states have (on average 1.1974383760270662) internal successors, (9910), 8276 states have internal predecessors, (9910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:31,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8277 states to 8277 states and 9910 transitions. [2024-11-16 03:52:31,915 INFO L78 Accepts]: Start accepts. Automaton has 8277 states and 9910 transitions. Word has length 276 [2024-11-16 03:52:31,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:31,916 INFO L471 AbstractCegarLoop]: Abstraction has 8277 states and 9910 transitions. [2024-11-16 03:52:31,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.5) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:31,916 INFO L276 IsEmpty]: Start isEmpty. Operand 8277 states and 9910 transitions. [2024-11-16 03:52:31,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2024-11-16 03:52:31,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:31,920 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:31,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 03:52:31,921 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:31,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:31,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1504721928, now seen corresponding path program 1 times [2024-11-16 03:52:31,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:31,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604693246] [2024-11-16 03:52:31,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:31,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:32,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:32,583 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-16 03:52:32,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:32,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604693246] [2024-11-16 03:52:32,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604693246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:32,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:32,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 03:52:32,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666634480] [2024-11-16 03:52:32,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:32,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 03:52:32,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:32,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 03:52:32,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:52:32,589 INFO L87 Difference]: Start difference. First operand 8277 states and 9910 transitions. Second operand has 5 states, 5 states have (on average 43.8) internal successors, (219), 4 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:36,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:36,909 INFO L93 Difference]: Finished difference Result 21816 states and 25483 transitions. [2024-11-16 03:52:36,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 03:52:36,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.8) internal successors, (219), 4 states have internal predecessors, (219), 0 states have call successors, (0), 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 277 [2024-11-16 03:52:36,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:36,933 INFO L225 Difference]: With dead ends: 21816 [2024-11-16 03:52:36,933 INFO L226 Difference]: Without dead ends: 13541 [2024-11-16 03:52:36,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:52:36,940 INFO L432 NwaCegarLoop]: 608 mSDtfsCounter, 2813 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 5170 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2813 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 5316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 5170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:36,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2813 Valid, 640 Invalid, 5316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 5170 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-16 03:52:36,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13541 states. [2024-11-16 03:52:37,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13541 to 12037. [2024-11-16 03:52:37,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12037 states, 12036 states have (on average 1.1514622798271852) internal successors, (13859), 12036 states have internal predecessors, (13859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:37,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12037 states to 12037 states and 13859 transitions. [2024-11-16 03:52:37,098 INFO L78 Accepts]: Start accepts. Automaton has 12037 states and 13859 transitions. Word has length 277 [2024-11-16 03:52:37,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:37,099 INFO L471 AbstractCegarLoop]: Abstraction has 12037 states and 13859 transitions. [2024-11-16 03:52:37,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.8) internal successors, (219), 4 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:37,100 INFO L276 IsEmpty]: Start isEmpty. Operand 12037 states and 13859 transitions. [2024-11-16 03:52:37,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2024-11-16 03:52:37,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:37,105 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:37,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 03:52:37,106 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:37,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:37,106 INFO L85 PathProgramCache]: Analyzing trace with hash 147629252, now seen corresponding path program 1 times [2024-11-16 03:52:37,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:37,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408058809] [2024-11-16 03:52:37,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:37,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:37,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:37,328 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 341 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-16 03:52:37,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:37,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408058809] [2024-11-16 03:52:37,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408058809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:37,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:37,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:37,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848230348] [2024-11-16 03:52:37,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:37,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:37,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:37,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:37,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:37,333 INFO L87 Difference]: Start difference. First operand 12037 states and 13859 transitions. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:40,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:40,433 INFO L93 Difference]: Finished difference Result 36104 states and 41571 transitions. [2024-11-16 03:52:40,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:40,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 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 360 [2024-11-16 03:52:40,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:40,479 INFO L225 Difference]: With dead ends: 36104 [2024-11-16 03:52:40,479 INFO L226 Difference]: Without dead ends: 24069 [2024-11-16 03:52:40,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:40,497 INFO L432 NwaCegarLoop]: 1381 mSDtfsCounter, 669 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2720 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 1389 SdHoareTripleChecker+Invalid, 3081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 2720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:40,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [669 Valid, 1389 Invalid, 3081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [361 Valid, 2720 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-16 03:52:40,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24069 states. [2024-11-16 03:52:40,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24069 to 22565. [2024-11-16 03:52:40,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22565 states, 22564 states have (on average 1.1370767594398157) internal successors, (25657), 22564 states have internal predecessors, (25657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:40,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22565 states to 22565 states and 25657 transitions. [2024-11-16 03:52:40,814 INFO L78 Accepts]: Start accepts. Automaton has 22565 states and 25657 transitions. Word has length 360 [2024-11-16 03:52:40,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:40,815 INFO L471 AbstractCegarLoop]: Abstraction has 22565 states and 25657 transitions. [2024-11-16 03:52:40,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:40,816 INFO L276 IsEmpty]: Start isEmpty. Operand 22565 states and 25657 transitions. [2024-11-16 03:52:40,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2024-11-16 03:52:40,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:40,823 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:40,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 03:52:40,823 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:40,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:40,824 INFO L85 PathProgramCache]: Analyzing trace with hash -161538630, now seen corresponding path program 1 times [2024-11-16 03:52:40,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:40,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323304557] [2024-11-16 03:52:40,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:40,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:40,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:41,201 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 315 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-16 03:52:41,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:41,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323304557] [2024-11-16 03:52:41,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323304557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:41,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:41,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:41,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264286006] [2024-11-16 03:52:41,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:41,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:41,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:41,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:41,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:41,205 INFO L87 Difference]: Start difference. First operand 22565 states and 25657 transitions. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:44,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:44,040 INFO L93 Difference]: Finished difference Result 54152 states and 62422 transitions. [2024-11-16 03:52:44,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:44,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 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 364 [2024-11-16 03:52:44,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:44,092 INFO L225 Difference]: With dead ends: 54152 [2024-11-16 03:52:44,093 INFO L226 Difference]: Without dead ends: 31589 [2024-11-16 03:52:44,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:44,120 INFO L432 NwaCegarLoop]: 502 mSDtfsCounter, 704 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2266 mSolverCounterSat, 646 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 2912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 646 IncrementalHoareTripleChecker+Valid, 2266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:44,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 509 Invalid, 2912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [646 Valid, 2266 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-16 03:52:44,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31589 states. [2024-11-16 03:52:44,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31589 to 31589. [2024-11-16 03:52:44,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31589 states, 31588 states have (on average 1.1368241104216792) internal successors, (35910), 31588 states have internal predecessors, (35910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:44,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31589 states to 31589 states and 35910 transitions. [2024-11-16 03:52:44,504 INFO L78 Accepts]: Start accepts. Automaton has 31589 states and 35910 transitions. Word has length 364 [2024-11-16 03:52:44,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:44,505 INFO L471 AbstractCegarLoop]: Abstraction has 31589 states and 35910 transitions. [2024-11-16 03:52:44,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:44,505 INFO L276 IsEmpty]: Start isEmpty. Operand 31589 states and 35910 transitions. [2024-11-16 03:52:44,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-16 03:52:44,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:44,513 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:52:44,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 03:52:44,513 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:44,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:44,514 INFO L85 PathProgramCache]: Analyzing trace with hash 451809908, now seen corresponding path program 1 times [2024-11-16 03:52:44,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:44,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940431485] [2024-11-16 03:52:44,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:44,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:44,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:45,055 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 176 proven. 110 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-11-16 03:52:45,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:45,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940431485] [2024-11-16 03:52:45,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940431485] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:52:45,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712765798] [2024-11-16 03:52:45,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:45,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:52:45,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:52:45,060 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:52:45,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 03:52:45,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:45,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:52:45,217 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:52:45,348 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 315 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-16 03:52:45,348 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:52:45,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712765798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:45,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:52:45,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-16 03:52:45,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107286920] [2024-11-16 03:52:45,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:45,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:45,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:45,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:45,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:52:45,350 INFO L87 Difference]: Start difference. First operand 31589 states and 35910 transitions. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:47,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:47,812 INFO L93 Difference]: Finished difference Result 75208 states and 86726 transitions. [2024-11-16 03:52:47,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:47,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 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 392 [2024-11-16 03:52:47,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:47,862 INFO L225 Difference]: With dead ends: 75208 [2024-11-16 03:52:47,863 INFO L226 Difference]: Without dead ends: 43621 [2024-11-16 03:52:47,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:52:47,893 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 790 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2067 mSolverCounterSat, 818 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 2885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 818 IncrementalHoareTripleChecker+Valid, 2067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:47,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 238 Invalid, 2885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [818 Valid, 2067 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-16 03:52:47,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43621 states. [2024-11-16 03:52:48,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43621 to 43621. [2024-11-16 03:52:48,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43621 states, 43620 states have (on average 1.1323933975240714) internal successors, (49395), 43620 states have internal predecessors, (49395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:48,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43621 states to 43621 states and 49395 transitions. [2024-11-16 03:52:48,504 INFO L78 Accepts]: Start accepts. Automaton has 43621 states and 49395 transitions. Word has length 392 [2024-11-16 03:52:48,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:48,505 INFO L471 AbstractCegarLoop]: Abstraction has 43621 states and 49395 transitions. [2024-11-16 03:52:48,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:48,505 INFO L276 IsEmpty]: Start isEmpty. Operand 43621 states and 49395 transitions. [2024-11-16 03:52:48,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2024-11-16 03:52:48,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:48,511 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:52:48,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 03:52:48,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-16 03:52:48,712 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:48,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:48,712 INFO L85 PathProgramCache]: Analyzing trace with hash 918156650, now seen corresponding path program 1 times [2024-11-16 03:52:48,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:48,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573654537] [2024-11-16 03:52:48,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:48,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:49,002 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-16 03:52:49,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:49,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573654537] [2024-11-16 03:52:49,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573654537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:49,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:49,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:49,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673418544] [2024-11-16 03:52:49,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:49,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:49,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:49,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:49,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:49,005 INFO L87 Difference]: Start difference. First operand 43621 states and 49395 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:51,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:51,935 INFO L93 Difference]: Finished difference Result 124840 states and 141958 transitions. [2024-11-16 03:52:51,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:51,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 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 396 [2024-11-16 03:52:51,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:52,029 INFO L225 Difference]: With dead ends: 124840 [2024-11-16 03:52:52,029 INFO L226 Difference]: Without dead ends: 76709 [2024-11-16 03:52:52,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:52,066 INFO L432 NwaCegarLoop]: 1289 mSDtfsCounter, 733 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2209 mSolverCounterSat, 611 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 2820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 611 IncrementalHoareTripleChecker+Valid, 2209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:52,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 1299 Invalid, 2820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [611 Valid, 2209 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 03:52:52,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76709 states. [2024-11-16 03:52:52,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76709 to 72197. [2024-11-16 03:52:53,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72197 states, 72196 states have (on average 1.1027896282342513) internal successors, (79617), 72196 states have internal predecessors, (79617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:53,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72197 states to 72197 states and 79617 transitions. [2024-11-16 03:52:53,125 INFO L78 Accepts]: Start accepts. Automaton has 72197 states and 79617 transitions. Word has length 396 [2024-11-16 03:52:53,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:53,125 INFO L471 AbstractCegarLoop]: Abstraction has 72197 states and 79617 transitions. [2024-11-16 03:52:53,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:53,125 INFO L276 IsEmpty]: Start isEmpty. Operand 72197 states and 79617 transitions. [2024-11-16 03:52:53,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2024-11-16 03:52:53,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:53,134 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 03:52:53,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 03:52:53,134 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:53,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:53,135 INFO L85 PathProgramCache]: Analyzing trace with hash -520283858, now seen corresponding path program 1 times [2024-11-16 03:52:53,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:53,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414260078] [2024-11-16 03:52:53,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:53,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:53,665 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 363 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-16 03:52:53,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:53,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414260078] [2024-11-16 03:52:53,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414260078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:53,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:53,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:53,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582733404] [2024-11-16 03:52:53,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:53,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:53,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:53,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:53,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:53,668 INFO L87 Difference]: Start difference. First operand 72197 states and 79617 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:56,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:56,602 INFO L93 Difference]: Finished difference Result 170712 states and 190280 transitions. [2024-11-16 03:52:56,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:56,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 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 420 [2024-11-16 03:52:56,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:56,724 INFO L225 Difference]: With dead ends: 170712 [2024-11-16 03:52:56,725 INFO L226 Difference]: Without dead ends: 98517 [2024-11-16 03:52:56,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:56,759 INFO L432 NwaCegarLoop]: 1245 mSDtfsCounter, 729 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2125 mSolverCounterSat, 681 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 2806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 681 IncrementalHoareTripleChecker+Valid, 2125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:56,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 1253 Invalid, 2806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [681 Valid, 2125 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 03:52:56,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98517 states. [2024-11-16 03:52:57,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98517 to 94757. [2024-11-16 03:52:57,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94757 states, 94756 states have (on average 1.0938726835239985) internal successors, (103651), 94756 states have internal predecessors, (103651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:57,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94757 states to 94757 states and 103651 transitions. [2024-11-16 03:52:57,956 INFO L78 Accepts]: Start accepts. Automaton has 94757 states and 103651 transitions. Word has length 420 [2024-11-16 03:52:57,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:57,956 INFO L471 AbstractCegarLoop]: Abstraction has 94757 states and 103651 transitions. [2024-11-16 03:52:57,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:52:57,956 INFO L276 IsEmpty]: Start isEmpty. Operand 94757 states and 103651 transitions. [2024-11-16 03:52:57,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2024-11-16 03:52:57,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:57,963 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 03:52:57,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 03:52:57,964 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:57,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:57,964 INFO L85 PathProgramCache]: Analyzing trace with hash 840943396, now seen corresponding path program 1 times [2024-11-16 03:52:57,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:57,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495446894] [2024-11-16 03:52:57,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:57,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:58,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:58,510 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 03:52:58,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:58,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495446894] [2024-11-16 03:52:58,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495446894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:58,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:58,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:58,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877509075] [2024-11-16 03:52:58,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:58,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:58,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:58,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:58,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:58,514 INFO L87 Difference]: Start difference. First operand 94757 states and 103651 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states 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 03:53:01,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:53:01,625 INFO L93 Difference]: Finished difference Result 225608 states and 247789 transitions. [2024-11-16 03:53:01,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:53:01,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 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 424 [2024-11-16 03:53:01,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:53:01,779 INFO L225 Difference]: With dead ends: 225608 [2024-11-16 03:53:01,780 INFO L226 Difference]: Without dead ends: 130853 [2024-11-16 03:53:01,817 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 03:53:01,818 INFO L432 NwaCegarLoop]: 1205 mSDtfsCounter, 715 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2407 mSolverCounterSat, 536 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 2943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 536 IncrementalHoareTripleChecker+Valid, 2407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:53:01,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [715 Valid, 1215 Invalid, 2943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [536 Valid, 2407 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 03:53:02,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130853 states. [2024-11-16 03:53:03,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130853 to 125589. [2024-11-16 03:53:03,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125589 states, 125588 states have (on average 1.093878396025098) internal successors, (137378), 125588 states have internal predecessors, (137378), 0 states have call successors, (0), 0 states 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 03:53:03,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125589 states to 125589 states and 137378 transitions. [2024-11-16 03:53:03,728 INFO L78 Accepts]: Start accepts. Automaton has 125589 states and 137378 transitions. Word has length 424 [2024-11-16 03:53:03,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:53:03,729 INFO L471 AbstractCegarLoop]: Abstraction has 125589 states and 137378 transitions. [2024-11-16 03:53:03,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states 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 03:53:03,729 INFO L276 IsEmpty]: Start isEmpty. Operand 125589 states and 137378 transitions. [2024-11-16 03:53:03,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2024-11-16 03:53:03,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:53:03,739 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:53:03,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 03:53:03,740 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:53:03,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:53:03,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1831665978, now seen corresponding path program 1 times [2024-11-16 03:53:03,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:53:03,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842448527] [2024-11-16 03:53:03,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:53:03,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:53:03,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:53:04,238 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 519 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2024-11-16 03:53:04,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:53:04,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842448527] [2024-11-16 03:53:04,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842448527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:53:04,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:53:04,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:53:04,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644833656] [2024-11-16 03:53:04,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:53:04,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:53:04,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:53:04,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:53:04,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:53:04,242 INFO L87 Difference]: Start difference. First operand 125589 states and 137378 transitions. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states 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 03:53:07,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:53:07,483 INFO L93 Difference]: Finished difference Result 259448 states and 283209 transitions. [2024-11-16 03:53:07,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:53:07,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 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 493 [2024-11-16 03:53:07,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:53:07,637 INFO L225 Difference]: With dead ends: 259448 [2024-11-16 03:53:07,637 INFO L226 Difference]: Without dead ends: 133861 [2024-11-16 03:53:07,689 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 03:53:07,690 INFO L432 NwaCegarLoop]: 396 mSDtfsCounter, 668 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2503 mSolverCounterSat, 402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 2905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 402 IncrementalHoareTripleChecker+Valid, 2503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:53:07,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [668 Valid, 405 Invalid, 2905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [402 Valid, 2503 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 03:53:07,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133861 states. [2024-11-16 03:53:09,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133861 to 125589. [2024-11-16 03:53:09,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125589 states, 125588 states have (on average 1.0823247444023314) internal successors, (135927), 125588 states have internal predecessors, (135927), 0 states have call successors, (0), 0 states 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 03:53:09,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125589 states to 125589 states and 135927 transitions. [2024-11-16 03:53:09,218 INFO L78 Accepts]: Start accepts. Automaton has 125589 states and 135927 transitions. Word has length 493 [2024-11-16 03:53:09,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:53:09,218 INFO L471 AbstractCegarLoop]: Abstraction has 125589 states and 135927 transitions. [2024-11-16 03:53:09,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states 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 03:53:09,219 INFO L276 IsEmpty]: Start isEmpty. Operand 125589 states and 135927 transitions. [2024-11-16 03:53:09,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2024-11-16 03:53:09,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:53:09,228 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:09,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 03:53:09,228 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:53:09,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:53:09,228 INFO L85 PathProgramCache]: Analyzing trace with hash 2006455491, now seen corresponding path program 1 times [2024-11-16 03:53:09,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:53:09,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248937472] [2024-11-16 03:53:09,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:53:09,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:53:09,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:53:09,869 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 614 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-16 03:53:09,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:53:09,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248937472] [2024-11-16 03:53:09,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248937472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:53:09,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:53:09,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:53:09,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7527775] [2024-11-16 03:53:09,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:53:09,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:53:09,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:53:09,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:53:09,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:53:09,873 INFO L87 Difference]: Start difference. First operand 125589 states and 135927 transitions. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:53:13,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:53:13,254 INFO L93 Difference]: Finished difference Result 288024 states and 312763 transitions. [2024-11-16 03:53:13,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:53:13,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 503 [2024-11-16 03:53:13,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:53:13,425 INFO L225 Difference]: With dead ends: 288024 [2024-11-16 03:53:13,425 INFO L226 Difference]: Without dead ends: 162437 [2024-11-16 03:53:13,481 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 03:53:13,482 INFO L432 NwaCegarLoop]: 1273 mSDtfsCounter, 664 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2310 mSolverCounterSat, 508 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 2818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 508 IncrementalHoareTripleChecker+Valid, 2310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:53:13,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 1283 Invalid, 2818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [508 Valid, 2310 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-16 03:53:13,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162437 states. [2024-11-16 03:53:15,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162437 to 157173. [2024-11-16 03:53:15,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157173 states, 157172 states have (on average 1.0749179243122184) internal successors, (168947), 157172 states have internal predecessors, (168947), 0 states have call successors, (0), 0 states 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 03:53:15,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157173 states to 157173 states and 168947 transitions. [2024-11-16 03:53:15,423 INFO L78 Accepts]: Start accepts. Automaton has 157173 states and 168947 transitions. Word has length 503 [2024-11-16 03:53:15,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:53:15,423 INFO L471 AbstractCegarLoop]: Abstraction has 157173 states and 168947 transitions. [2024-11-16 03:53:15,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:53:15,424 INFO L276 IsEmpty]: Start isEmpty. Operand 157173 states and 168947 transitions. [2024-11-16 03:53:15,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 565 [2024-11-16 03:53:15,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:53:15,433 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:53:15,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 03:53:15,433 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:53:15,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:53:15,433 INFO L85 PathProgramCache]: Analyzing trace with hash -140679224, now seen corresponding path program 1 times [2024-11-16 03:53:15,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:53:15,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228687330] [2024-11-16 03:53:15,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:53:15,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:53:15,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:53:16,492 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 653 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-16 03:53:16,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:53:16,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228687330] [2024-11-16 03:53:16,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228687330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:53:16,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:53:16,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:53:16,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311841165] [2024-11-16 03:53:16,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:53:16,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:53:16,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:53:16,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:53:16,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:53:16,496 INFO L87 Difference]: Start difference. First operand 157173 states and 168947 transitions. Second operand has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 0 states 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 03:53:19,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:53:19,916 INFO L93 Difference]: Finished difference Result 342920 states and 370679 transitions. [2024-11-16 03:53:19,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:53:19,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 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 564 [2024-11-16 03:53:19,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:53:20,128 INFO L225 Difference]: With dead ends: 342920 [2024-11-16 03:53:20,129 INFO L226 Difference]: Without dead ends: 185749 [2024-11-16 03:53:20,196 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 03:53:20,197 INFO L432 NwaCegarLoop]: 1279 mSDtfsCounter, 604 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2233 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 1289 SdHoareTripleChecker+Invalid, 2677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 2233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:53:20,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 1289 Invalid, 2677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 2233 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-16 03:53:20,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185749 states.