Trace number 1071538

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
Abscon 112v4 ESACUNSAT 1.69374 1.77506

DiagnosticValue
CHECKS2511
NODES35

General information on the benchmark

Namecsp/
chessboardColoration/normalized-cc-8-8-2.xml
MD5SUMc749bc7e0566d10272437da124749429
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.215966
Satisfiable
(Un)Satisfiability was proved
Number of variables64
Number of constraints784
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension784
Global constraints used (with number of constraints)

Solver Data (download as text)

0.03/0.08	
0.03/0.08	Abscon 112 (May, 2008)
0.19/0.23	
0.19/0.23	   configuration
0.19/0.23	     name=esac.xml
0.28/0.31	   
0.28/0.31	   instance
0.28/0.31	     name=HOME/instance-1071538-1215169242.xml
0.28/0.35	   
0.28/0.35	   domains being loaded...
0.28/0.36	   
0.28/0.36	   variables being loaded...
0.28/0.38	     nbVariables=64  nbDomainTypes=1  minDomainSize=2  maxDomainSize=2  nbTotalValues=128
0.28/0.38	       =>  wckTime=0.148  cpuTime=0.11  mem=7M853
0.28/0.38	   
0.28/0.38	   predicates being loaded...
0.38/0.45	   
0.38/0.45	   constraints being loaded...
1.25/1.31	     nbConstraints=798  nbGlobalConstraints=14  nbConflictsStructures=1  nbSharedConflictsStructures=783
1.25/1.31	     nbSharedBinaryRepresentations=0  nbEvaluationManagers=1  nbSharedEvaluationManagers=783  minDegree=51  maxDegree=54
1.25/1.31	     minArity=4  avgArity=4.26  maxArity=56  nbGenerators=14  nbFusions=0  symmetryWckTime=0.156  symmetryCpuTime=0.07
1.25/1.31	       =>  wckTime=1.075  cpuTime=0.8  mem=43M3
1.35/1.40	   
1.35/1.40	   solver IterativeSystematicSolver being built... 
1.44/1.52	   
1.44/1.52	   INFO : Forward propagation technique limited 
1.44/1.59	       =>  wckTime=1.355  cpuTime=0.94  mem=29M683
1.54/1.67	   
1.54/1.67	   preprocessing
1.54/1.67	     nbConstraintChecks=1888  nbValidityChecks=2297  nbPropagations=293  nbRevisions=2408  nbUselessRevisions=2177
1.54/1.67	     nbSingletonTests=117  nbEffectiveSingletonTests=1  nbACRemovals=0  nbFoundSingletons=0  nbRemovedValues=6
1.54/1.67	     detectedInconsistency=no
1.54/1.67	       =>  wckTime=0.08  cpuTime=0.05  mem=29M683
1.65/1.70	   
1.65/1.70	   search
1.65/1.70	     run=0  nbConstraintChecks=623  nbValidityChecks=1476  minDepth=0  maxDepth=21  nbPropagations=376  nbRevisions=3575
1.65/1.70	     nbUselessRevisions=3261  nbAssignments=35  nbFailedAssignments=2  nbBacktracks=22  nbVisitedNodes=43
1.65/1.70	     nbRestartNogoods=0  mapSize=6  nbInferences=0  nbTooLargeKeys=0  nbSEliminables=0  nbREliminables=50.33
1.65/1.70	     nbIEliminables=8.55  nbDEliminables=0  nbPEliminables=0
1.65/1.70	       =>  wckTime=0.114  cpuTime=0.08  mem=30M668
1.65/1.71	   
1.65/1.71	   global
1.65/1.71	     nbConstraintChecks=2511  nbValidityChecks=3773  nbPropagations=669  nbRevisions=5983  nbUselessRevisions=5438
1.65/1.71	     nbRestartNogoods=0  solvingWckTime=0.116  solvingCpuTime=0.08  expiredTime=no  totalExploration=yes
1.65/1.71	     nbFoundSolutions=0  globalCpuTime=1.07
1.65/1.71	       =>  wckTime=1.472  cpuTime=1.02  mem=30M668
1.65/1.71	   
1.65/1.71	s UNSATISFIABLE
1.65/1.71	d NODES 35
1.65/1.71	d CHECKS 2511
1.65/1.71	   
1.65/1.71	   totalWckTime=1.527  totalCpuTime=1.07

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1071538-1215169242/watcher-1071538-1215169242 -o /tmp/evaluation-result-1071538-1215169242/solver-1071538-1215169242 -C 1800 -W 2200 -M 900 --output-limit 1,15 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution esac.xml 1 XSax HOME/instance-1071538-1215169242.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2200 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 30352
/proc/meminfo: memFree=1886408/2055920 swapFree=4180844/4192956
[pid=30352] ppid=30350 vsize=18572 CPUtime=0
/proc/30352/stat : 30352 (runsolver) R 30350 30352 29112 0 -1 4194368 16 0 0 0 0 0 0 0 18 0 1 0 1995898229 19017728 292 996147200 4194304 4296836 548682068336 18446744073709551615 253307186471 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/30352/statm: 4643 292 257 25 0 2626 0

[startup+0.049082 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 30352
/proc/meminfo: memFree=1886408/2055920 swapFree=4180844/4192956
[pid=30352] ppid=30350 vsize=862200 CPUtime=0.03
/proc/30352/stat : 30352 (java) S 30350 30352 29112 0 -1 0 2375 0 1 0 2 1 0 0 18 0 6 0 1995898229 882892800 1958 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800971 18446744073709551615 0 0 17 1 0 0
/proc/30352/statm: 215550 1958 901 9 0 210529 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 862200

[startup+0.101628 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 30352
/proc/meminfo: memFree=1886408/2055920 swapFree=4180844/4192956
[pid=30352] ppid=30350 vsize=865884 CPUtime=0.08
/proc/30352/stat : 30352 (java) S 30350 30352 29112 0 -1 0 3782 0 1 0 7 1 0 0 18 0 9 0 1995898229 886665216 3233 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/30352/statm: 216471 3233 1712 9 0 211026 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 865884

[startup+0.301645 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 30352
/proc/meminfo: memFree=1886408/2055920 swapFree=4180844/4192956
[pid=30352] ppid=30350 vsize=866196 CPUtime=0.28
/proc/30352/stat : 30352 (java) S 30350 30352 29112 0 -1 0 5620 0 1 0 26 2 0 0 18 0 9 0 1995898229 886984704 5034 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/30352/statm: 216549 5034 1903 9 0 211097 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 866196

[startup+0.701681 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 30352
/proc/meminfo: memFree=1886408/2055920 swapFree=4180844/4192956
[pid=30352] ppid=30350 vsize=867064 CPUtime=0.67
/proc/30352/stat : 30352 (java) S 30350 30352 29112 0 -1 0 9034 0 1 0 63 4 0 0 18 0 9 0 1995898229 887873536 8394 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/30352/statm: 216766 8394 2006 9 0 211272 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 867064

[startup+1.50275 s]
/proc/loadavg: 2.00 2.00 2.00 3/90 30361
/proc/meminfo: memFree=1846976/2055920 swapFree=4180844/4192956
[pid=30352] ppid=30350 vsize=868008 CPUtime=1.44
/proc/30352/stat : 30352 (java) S 30350 30352 29112 0 -1 0 23470 437 1 0 127 12 5 0 18 0 9 0 1995898229 888840192 16008 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/30352/statm: 217002 16008 2631 9 0 211508 0
[pid=30352/tid=30354] ppid=30350 vsize=868008 CPUtime=1.11
/proc/30352/task/30354/stat : 30354 (java) R 30350 30352 29112 0 -1 64 16399 437 1 0 97 9 5 0 21 0 9 0 1995898231 888840192 16008 996147200 134512640 134550740 4294955968 18446744073709551615 4126378656 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=30352/tid=30355] ppid=30350 vsize=868008 CPUtime=0.12
/proc/30352/task/30355/stat : 30355 (java) S 30350 30352 29112 0 -1 64 5334 437 0 0 6 1 5 0 16 0 9 0 1995898232 888840192 16008 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 1 0 0
[pid=30352/tid=30356] ppid=30350 vsize=868008 CPUtime=0.05
/proc/30352/task/30356/stat : 30356 (java) S 30350 30352 29112 0 -1 64 14 437 0 0 0 0 5 0 16 0 9 0 1995898232 888840192 16008 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=30352/tid=30357] ppid=30350 vsize=868008 CPUtime=0.05
/proc/30352/task/30357/stat : 30357 (java) S 30350 30352 29112 0 -1 64 13 437 0 0 0 0 5 0 16 0 9 0 1995898232 888840192 16008 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=30352/tid=30358] ppid=30350 vsize=868008 CPUtime=0.05
/proc/30352/task/30358/stat : 30358 (java) S 30350 30352 29112 0 -1 64 1 437 0 0 0 0 5 0 18 0 9 0 1995898234 888840192 16008 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=30352/tid=30359] ppid=30350 vsize=868008 CPUtime=0.27
/proc/30352/task/30359/stat : 30359 (java) S 30350 30352 29112 0 -1 64 896 437 0 0 22 0 5 0 15 0 9 0 1995898234 888840192 16008 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=30352/tid=30360] ppid=30350 vsize=868008 CPUtime=0.05
/proc/30352/task/30360/stat : 30360 (java) S 30350 30352 29112 0 -1 64 2 437 0 0 0 0 5 0 19 0 9 0 1995898234 888840192 16008 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=30352/tid=30361] ppid=30350 vsize=868008 CPUtime=0.05
/proc/30352/task/30361/stat : 30361 (java) R 30350 30352 29112 0 -1 64 7 437 0 0 0 0 5 0 15 0 9 0 1995898234 888840192 16008 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.44
Current children cumulated vsize (KiB) 868008

Solver just ended. Dumping a history of the last processes samples

[startup+1.70277 s]
/proc/loadavg: 2.00 2.00 2.00 3/90 30361
/proc/meminfo: memFree=1846976/2055920 swapFree=4180844/4192956
[pid=30352] ppid=30350 vsize=868008 CPUtime=1.65
/proc/30352/stat : 30352 (java) S 30350 30352 29112 0 -1 0 26052 437 1 0 146 14 5 0 18 0 9 0 1995898229 888840192 16083 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/30352/statm: 217002 16083 2632 9 0 211508 0
[pid=30352/tid=30354] ppid=30350 vsize=868008 CPUtime=1.26
/proc/30352/task/30354/stat : 30354 (java) R 30350 30352 29112 0 -1 64 18950 437 1 0 111 10 5 0 23 0 9 0 1995898231 888840192 16083 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=30352/tid=30355] ppid=30350 vsize=868008 CPUtime=0.12
/proc/30352/task/30355/stat : 30355 (java) S 30350 30352 29112 0 -1 64 5334 437 0 0 6 1 5 0 16 0 9 0 1995898232 888840192 16083 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 1 0 0
[pid=30352/tid=30356] ppid=30350 vsize=868008 CPUtime=0.05
/proc/30352/task/30356/stat : 30356 (java) S 30350 30352 29112 0 -1 64 14 437 0 0 0 0 5 0 16 0 9 0 1995898232 888840192 16083 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=30352/tid=30357] ppid=30350 vsize=868008 CPUtime=0.05
/proc/30352/task/30357/stat : 30357 (java) S 30350 30352 29112 0 -1 64 13 437 0 0 0 0 5 0 16 0 9 0 1995898232 888840192 16083 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=30352/tid=30358] ppid=30350 vsize=868008 CPUtime=0.05
/proc/30352/task/30358/stat : 30358 (java) S 30350 30352 29112 0 -1 64 1 437 0 0 0 0 5 0 18 0 9 0 1995898234 888840192 16083 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=30352/tid=30359] ppid=30350 vsize=868008 CPUtime=0.33
/proc/30352/task/30359/stat : 30359 (java) R 30350 30352 29112 0 -1 64 927 437 0 0 27 1 5 0 16 0 9 0 1995898234 888840192 16083 996147200 134512640 134550740 4294955968 18446744073709551615 102181194 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=30352/tid=30360] ppid=30350 vsize=868008 CPUtime=0.05
/proc/30352/task/30360/stat : 30360 (java) S 30350 30352 29112 0 -1 64 2 437 0 0 0 0 5 0 19 0 9 0 1995898234 888840192 16083 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=30352/tid=30361] ppid=30350 vsize=868008 CPUtime=0.05
/proc/30352/task/30361/stat : 30361 (java) S 30350 30352 29112 0 -1 64 7 437 0 0 0 0 5 0 15 0 9 0 1995898234 888840192 16083 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.65
Current children cumulated vsize (KiB) 868008

Child status: 0
Real time (s): 1.77506
CPU time (s): 1.69374
CPU user time (s): 1.53177
CPU system time (s): 0.161975
CPU usage (%): 95.4191
Max. virtual memory (cumulated for all children) (KiB): 868008

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.53177
system time used= 0.161975
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 26580
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 1176
involuntary context switches= 1291

runsolver used 0.005999 second user time and 0.011998 second system time

The end

Launcher Data (download as text)

Begin job on node25 at 2008-07-04 13:00:42
IDJOB=1071538
IDBENCH=56093
IDSOLVER=364
FILE ID=node25/1071538-1215169242
PBS_JOBID= 7881458
Free space on /tmp= 66556 MiB

SOLVER NAME= Abscon 112v4 ESAC
BENCH NAME= CPAI08/csp/chessboardColoration/normalized-cc-8-8-2.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution esac.xml 1 XSax BENCHNAME
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1071538-1215169242/watcher-1071538-1215169242 -o /tmp/evaluation-result-1071538-1215169242/solver-1071538-1215169242 -C 1800 -W 2200 -M 900 --output-limit 1,15  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution esac.xml 1 XSax HOME/instance-1071538-1215169242.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= c749bc7e0566d10272437da124749429
RANDOM SEED=571167455

node25.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.234
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.234
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1886888 kB
Buffers:         15292 kB
Cached:          77520 kB
SwapCached:       6196 kB
Active:          60252 kB
Inactive:        55904 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1886888 kB
SwapTotal:     4192956 kB
SwapFree:      4180844 kB
Dirty:            2132 kB
Writeback:           0 kB
Mapped:          39168 kB
Slab:            37872 kB
Committed_AS:  3501620 kB
PageTables:       2044 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66556 MiB
End job on node25 at 2008-07-04 13:00:44