Trace number 1071418

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
MDG-probe 2008-06-27UNSAT 41.5177 41.924

DiagnosticValue
ASSIGNMENTS9486
CHECKS16818000

General information on the benchmark

Namecsp/chessboardColoration/
normalized-cc-20-20-2.xml
MD5SUM2344aea19d376a2dc3bf2408a1b627e6
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 benchmark12.7501
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of constraints36100
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension36100
Global constraints used (with number of constraints)

Solver Data (download as text)

0.18/0.20	c mistral-prime version 1.313
0.18/0.20	c 
0.18/0.20	c Parsing xml file
0.18/0.20	c          domains...............     0	(1 domains)
0.18/0.20	c          variables.............     0	(400 variables)
0.18/0.20	c          predicates............     0	(1 predicates)
0.18/0.20	c          constraints...........  2.25	(36100 constraints)
2.17/2.28	c Parsing time:   2.25
2.17/2.28	c
2.17/2.28	c Building model
2.36/2.47	c         0 constants
2.36/2.47	c       400 Boolean variables    (+0)
2.36/2.47	c         0 range variables      (+0)
2.36/2.47	c         0 domain (b) variables (+0)
2.36/2.47	c         0 domain (l) variables (+0)
2.36/2.47	c     36100 constraints          (+0)
2.36/2.47	c         0 values 
2.36/2.47	c Building time:   0.19
2.36/2.47	c
2.36/2.47	c Solving instance
2.36/2.47	c          heuristic = dom/wdeg
2.36/2.47	c          Randomized probing iteration = 100
2.36/2.47	c          probing limit = 30
2.36/2.47	c          level based weights = no
2.36/2.47	c          impact probing = no
2.36/2.47	c          restart policy = No restart
2.36/2.47	c          probing .......... 15.83
18.21/18.46	c          Probing Nodes  5071
18.21/18.46	c          final run  23.03
41.29/41.71	c Solving time:  38.86
41.29/41.71	c
41.29/41.71	s UNSATISFIABLE
41.29/41.71	d CHECKS 16818017
41.29/41.71	d ASSIGNMENTS 9486

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-1071418-1215168962/watcher-1071418-1215168962 -o /tmp/evaluation-result-1071418-1215168962/solver-1071418-1215168962 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1071418-1215168962.xml -v 1 -rs 886792179 -probe 1 -ph 0 -heu dom/wdeg -res no 

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: 2.07 2.05 2.01 4/82 23742
/proc/meminfo: memFree=1049476/2055920 swapFree=4179028/4192956
[pid=23742] ppid=23740 vsize=820 CPUtime=0
/proc/23742/stat : 23742 (xsolve) R 23740 23742 22341 0 -1 4194304 39 0 0 0 0 0 0 0 21 0 1 0 1995869115 839680 25 996147200 134512640 135239859 4294956144 18446744073709551615 8921892 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/23742/statm: 205 25 19 177 0 3 0

[startup+0.076692 s]
/proc/loadavg: 2.07 2.05 2.01 4/82 23742
/proc/meminfo: memFree=1049476/2055920 swapFree=4179028/4192956
[pid=23742] ppid=23740 vsize=5108 CPUtime=0.06
/proc/23742/stat : 23742 (xsolve) R 23740 23742 22341 0 -1 4194304 617 0 0 0 6 0 0 0 18 0 1 0 1995869115 5230592 583 996147200 134512640 135239859 4294956144 18446744073709551615 134618075 0 0 4096 0 0 0 0 17 1 0 0
/proc/23742/statm: 1277 583 391 177 0 180 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 5108

[startup+0.102691 s]
/proc/loadavg: 2.07 2.05 2.01 4/82 23742
/proc/meminfo: memFree=1049476/2055920 swapFree=4179028/4192956
[pid=23742] ppid=23740 vsize=5364 CPUtime=0.09
/proc/23742/stat : 23742 (xsolve) R 23740 23742 22341 0 -1 4194304 664 0 0 0 9 0 0 0 18 0 1 0 1995869115 5492736 630 996147200 134512640 135239859 4294956144 18446744073709551615 134618072 0 0 4096 0 0 0 0 17 1 0 0
/proc/23742/statm: 1341 630 391 177 0 244 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5364

[startup+0.302725 s]
/proc/loadavg: 2.07 2.05 2.01 4/82 23742
/proc/meminfo: memFree=1049476/2055920 swapFree=4179028/4192956
[pid=23742] ppid=23740 vsize=6780 CPUtime=0.28
/proc/23742/stat : 23742 (xsolve) R 23740 23742 22341 0 -1 4194304 1010 0 0 0 28 0 0 0 19 0 1 0 1995869115 6942720 976 996147200 134512640 135239859 4294956144 18446744073709551615 4159000896 0 0 4096 0 0 0 0 17 1 0 0
/proc/23742/statm: 1695 976 391 177 0 598 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 6780

[startup+0.701752 s]
/proc/loadavg: 2.07 2.05 2.01 4/82 23742
/proc/meminfo: memFree=1049476/2055920 swapFree=4179028/4192956
[pid=23742] ppid=23740 vsize=9340 CPUtime=0.68
/proc/23742/stat : 23742 (xsolve) R 23740 23742 22341 0 -1 4194304 1643 0 0 0 67 1 0 0 23 0 1 0 1995869115 9564160 1609 996147200 134512640 135239859 4294956144 18446744073709551615 9363236 0 0 4096 0 0 0 0 17 1 0 0
/proc/23742/statm: 2335 1609 391 177 0 1238 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 9340

[startup+1.50183 s]
/proc/loadavg: 2.07 2.05 2.01 3/83 23743
/proc/meminfo: memFree=1042428/2055920 swapFree=4179028/4192956
[pid=23742] ppid=23740 vsize=14684 CPUtime=1.48
/proc/23742/stat : 23742 (xsolve) R 23740 23742 22341 0 -1 4194304 2973 0 0 0 146 2 0 0 25 0 1 0 1995869115 15036416 2939 996147200 134512640 135239859 4294956144 18446744073709551615 134618038 0 0 4096 0 0 0 0 17 1 0 0
/proc/23742/statm: 3671 2939 391 177 0 2574 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 14684

[startup+3.102 s]
/proc/loadavg: 2.07 2.05 2.01 3/83 23743
/proc/meminfo: memFree=1035068/2055920 swapFree=4179028/4192956
[pid=23742] ppid=23740 vsize=53880 CPUtime=3.06
/proc/23742/stat : 23742 (xsolve) R 23740 23742 22341 0 -1 4194304 12761 0 0 0 299 7 0 0 25 0 1 0 1995869115 55173120 12595 996147200 134512640 135239859 4294956144 18446744073709551615 134819999 0 0 4096 0 0 0 0 17 1 0 0
/proc/23742/statm: 13470 12595 410 177 0 12373 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 53880

[startup+6.30132 s]
/proc/loadavg: 2.07 2.05 2.01 3/83 23743
/proc/meminfo: memFree=1000188/2055920 swapFree=4179028/4192956
[pid=23742] ppid=23740 vsize=53880 CPUtime=6.22
/proc/23742/stat : 23742 (xsolve) R 23740 23742 22341 0 -1 4194304 12761 0 0 0 614 8 0 0 25 0 1 0 1995869115 55173120 12595 996147200 134512640 135239859 4294956144 18446744073709551615 134532177 0 0 4096 0 0 0 0 17 1 0 0
/proc/23742/statm: 13470 12595 410 177 0 12373 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 53880

[startup+12.702 s]
/proc/loadavg: 2.06 2.05 2.01 3/83 23743
/proc/meminfo: memFree=1000380/2055920 swapFree=4179028/4192956
[pid=23742] ppid=23740 vsize=53880 CPUtime=12.56
/proc/23742/stat : 23742 (xsolve) R 23740 23742 22341 0 -1 4194304 12761 0 0 0 1248 8 0 0 25 0 1 0 1995869115 55173120 12595 996147200 134512640 135239859 4294956144 18446744073709551615 134543126 0 0 4096 0 0 0 0 17 1 0 0
/proc/23742/statm: 13470 12595 410 177 0 12373 0
Current children cumulated CPU time (s) 12.56
Current children cumulated vsize (KiB) 53880

[startup+25.5022 s]
/proc/loadavg: 2.05 2.05 2.01 3/83 23743
/proc/meminfo: memFree=1000508/2055920 swapFree=4179028/4192956
[pid=23742] ppid=23740 vsize=53880 CPUtime=25.24
/proc/23742/stat : 23742 (xsolve) R 23740 23742 22341 0 -1 4194304 12762 0 0 0 2516 8 0 0 25 0 1 0 1995869115 55173120 12596 996147200 134512640 135239859 4294956144 18446744073709551615 134820823 0 0 4096 0 0 0 0 17 1 0 0
/proc/23742/statm: 13470 12596 411 177 0 12373 0
Current children cumulated CPU time (s) 25.24
Current children cumulated vsize (KiB) 53880

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

[startup+31.9069 s]
/proc/loadavg: 2.12 2.06 2.01 3/83 23743
/proc/meminfo: memFree=1000572/2055920 swapFree=4179028/4192956
[pid=23742] ppid=23740 vsize=53880 CPUtime=31.58
/proc/23742/stat : 23742 (xsolve) R 23740 23742 22341 0 -1 4194304 12762 0 0 0 3150 8 0 0 25 0 1 0 1995869115 55173120 12596 996147200 134512640 135239859 4294956144 18446744073709551615 134543101 0 0 4096 0 0 0 0 17 1 0 0
/proc/23742/statm: 13470 12596 411 177 0 12373 0
Current children cumulated CPU time (s) 31.58
Current children cumulated vsize (KiB) 53880

[startup+38.3015 s]
/proc/loadavg: 2.11 2.06 2.01 3/83 23743
/proc/meminfo: memFree=1000572/2055920 swapFree=4179028/4192956
[pid=23742] ppid=23740 vsize=53880 CPUtime=37.92
/proc/23742/stat : 23742 (xsolve) R 23740 23742 22341 0 -1 4194304 12762 0 0 0 3784 8 0 0 25 0 1 0 1995869115 55173120 12596 996147200 134512640 135239859 4294956144 18446744073709551615 134532177 0 0 4096 0 0 0 0 17 1 0 0
/proc/23742/statm: 13470 12596 411 177 0 12373 0
Current children cumulated CPU time (s) 37.92
Current children cumulated vsize (KiB) 53880

[startup+39.9017 s]
/proc/loadavg: 2.11 2.06 2.01 3/83 23743
/proc/meminfo: memFree=1000572/2055920 swapFree=4179028/4192956
[pid=23742] ppid=23740 vsize=53880 CPUtime=39.51
/proc/23742/stat : 23742 (xsolve) R 23740 23742 22341 0 -1 4194304 12762 0 0 0 3943 8 0 0 25 0 1 0 1995869115 55173120 12596 996147200 134512640 135239859 4294956144 18446744073709551615 134532177 0 0 4096 0 0 0 0 17 1 0 0
/proc/23742/statm: 13470 12596 411 177 0 12373 0
Current children cumulated CPU time (s) 39.51
Current children cumulated vsize (KiB) 53880

[startup+40.7067 s]
/proc/loadavg: 2.11 2.06 2.01 3/83 23743
/proc/meminfo: memFree=1000572/2055920 swapFree=4179028/4192956
[pid=23742] ppid=23740 vsize=53880 CPUtime=40.3
/proc/23742/stat : 23742 (xsolve) R 23740 23742 22341 0 -1 4194304 12762 0 0 0 4022 8 0 0 25 0 1 0 1995869115 55173120 12596 996147200 134512640 135239859 4294956144 18446744073709551615 134543126 0 0 4096 0 0 0 0 17 1 0 0
/proc/23742/statm: 13470 12596 411 177 0 12373 0
Current children cumulated CPU time (s) 40.3
Current children cumulated vsize (KiB) 53880

[startup+41.5018 s]
/proc/loadavg: 2.11 2.06 2.01 3/83 23743
/proc/meminfo: memFree=1000572/2055920 swapFree=4179028/4192956
[pid=23742] ppid=23740 vsize=53880 CPUtime=41.09
/proc/23742/stat : 23742 (xsolve) R 23740 23742 22341 0 -1 4194304 12762 0 0 0 4101 8 0 0 25 0 1 0 1995869115 55173120 12596 996147200 134512640 135239859 4294956144 18446744073709551615 135030995 0 0 4096 0 0 0 0 17 1 0 0
/proc/23742/statm: 13470 12596 411 177 0 12373 0
Current children cumulated CPU time (s) 41.09
Current children cumulated vsize (KiB) 53880

[startup+41.9029 s]
/proc/loadavg: 2.10 2.06 2.01 3/83 23743
/proc/meminfo: memFree=1000572/2055920 swapFree=4179028/4192956
[pid=23742] ppid=23740 vsize=20024 CPUtime=41.49
/proc/23742/stat : 23742 (xsolve) R 23740 23742 22341 0 -1 4194304 12771 0 0 0 4140 9 0 0 25 0 1 0 1995869115 20504576 4228 996147200 134512640 135239859 4294956144 18446744073709551615 9351320 0 0 4096 0 0 0 0 17 1 0 0
/proc/23742/statm: 5006 4228 420 177 0 3909 0
Current children cumulated CPU time (s) 41.49
Current children cumulated vsize (KiB) 20024

Child status: 0
Real time (s): 41.924
CPU time (s): 41.5177
CPU user time (s): 41.4217
CPU system time (s): 0.095985
CPU usage (%): 99.0309
Max. virtual memory (cumulated for all children) (KiB): 53880

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 41.4217
system time used= 0.095985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 12772
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 7
involuntary context switches= 1695

runsolver used 0.06199 second user time and 0.139978 second system time

The end

Launcher Data (download as text)

Begin job on node36 at 2008-07-04 12:56:02
IDJOB=1071418
IDBENCH=56087
IDSOLVER=342
FILE ID=node36/1071418-1215168962
PBS_JOBID= 7881489
Free space on /tmp= 66392 MiB

SOLVER NAME= MDG-probe 2008-06-27
BENCH NAME= CPAI08/csp/chessboardColoration/normalized-cc-20-20-2.xml
COMMAND LINE= HOME/xsolve BENCHNAME -v 1 -rs RANDOMSEED -probe 1 -ph 0 -heu dom/wdeg -res no
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1071418-1215168962/watcher-1071418-1215168962 -o /tmp/evaluation-result-1071418-1215168962/solver-1071418-1215168962 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1071418-1215168962.xml -v 1 -rs 886792179 -probe 1 -ph 0 -heu dom/wdeg -res no

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 2344aea19d376a2dc3bf2408a1b627e6
RANDOM SEED=886792179

node36.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		: 3000.240
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		: 3000.240
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:       1049892 kB
Buffers:         80548 kB
Cached:         476056 kB
SwapCached:       7932 kB
Active:         758028 kB
Inactive:       178832 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1049892 kB
SwapTotal:     4192956 kB
SwapFree:      4179028 kB
Dirty:            7380 kB
Writeback:           0 kB
Mapped:         397264 kB
Slab:            53544 kB
Committed_AS:  3681416 kB
PageTables:       2620 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= 66392 MiB
End job on node36 at 2008-07-04 12:56:44