Trace number 2082341

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
pcs-restart 0.3.2? (MO) 424.013 428.056

General information on the benchmark

Namecsp/langford2/
normalized-langford-2-13.xml
MD5SUMff00458be29b09ed6326f7909245998b
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark268.404
Satisfiable
(Un)Satisfiability was proved
Number of variables26
Number of constraints338
Maximum constraint arity2
Maximum domain size26
Number of constraints which are defined in extension0
Number of constraints which are defined in intension338
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c has operations which may create big domains
0.00/0.01	c big-domain mode
0.00/0.15	c Seed is 1543316491
0.00/0.15	c Constructing HOME/instance-2082341-1247720969.xml 
0.00/0.15	c deduced all_different(V1,V2,V3,V4,V5,V6,V7,V8,V9,V10,V11,V12,V13,V14,V15,V16,V17,V18,V19,V20,V21,V22,V23,V24,V25,V0)
0.00/0.15	c  with 339 constraints
0.00/0.15	c Solving

Verifier Data 

ERROR: Unexpected answer ! ('s SATISFIABLE'/'s UNSATISFIABLE' expected)
Got answer: <no 's ' line found>

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2082341-1247720969/watcher-2082341-1247720969 -o /tmp/evaluation-result-2082341-1247720969/solver-2082341-1247720969 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1543316491 HOME/instance-2082341-1247720969.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): 2000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.92 1.99 1.99 4/75 19089
/proc/meminfo: memFree=1497920/2055920 swapFree=4192812/4192956
[pid=19089] ppid=19087 vsize=18576 CPUtime=0
/proc/19089/stat : 19089 (runsolver) R 19087 19089 16378 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 59159570 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 209560595751 0 0 4096 24578 0 0 0 17 1 0 0
/proc/19089/statm: 4644 284 249 26 0 2626 0

[startup+0.23171 s]
/proc/loadavg: 1.92 1.99 1.99 4/75 19089
/proc/meminfo: memFree=1497920/2055920 swapFree=4192812/4192956
[pid=19089] ppid=19087 vsize=5020 CPUtime=0.2
/proc/19089/stat : 19089 (pcs.big) R 19087 19089 16378 0 -1 4194304 982 823 0 0 20 0 0 0 19 0 1 0 59159570 5140480 591 996147200 134512640 135215973 4294956304 18446744073709551615 134600167 0 0 4096 0 0 0 0 17 1 0 0
/proc/19089/statm: 1255 591 408 171 0 180 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 5020

[startup+0.30172 s]
/proc/loadavg: 1.92 1.99 1.99 4/75 19089
/proc/meminfo: memFree=1497920/2055920 swapFree=4192812/4192956
[pid=19089] ppid=19087 vsize=5148 CPUtime=0.27
/proc/19089/stat : 19089 (pcs.big) R 19087 19089 16378 0 -1 4194304 1021 823 0 0 27 0 0 0 19 0 1 0 59159570 5271552 630 996147200 134512640 135215973 4294956304 18446744073709551615 9167903 0 0 4096 0 0 0 0 17 1 0 0
/proc/19089/statm: 1287 630 408 171 0 212 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 5148

[startup+0.401737 s]
/proc/loadavg: 1.92 1.99 1.99 4/75 19089
/proc/meminfo: memFree=1497920/2055920 swapFree=4192812/4192956
[pid=19089] ppid=19087 vsize=5408 CPUtime=0.37
/proc/19089/stat : 19089 (pcs.big) R 19087 19089 16378 0 -1 4194304 1081 823 0 0 37 0 0 0 20 0 1 0 59159570 5537792 690 996147200 134512640 135215973 4294956304 18446744073709551615 134739692 0 0 4096 0 0 0 0 17 1 0 0
/proc/19089/statm: 1352 690 408 171 0 277 0
Current children cumulated CPU time (s) 0.37
Current children cumulated vsize (KiB) 5408

[startup+0.70179 s]
/proc/loadavg: 1.92 1.99 1.99 4/75 19089
/proc/meminfo: memFree=1497920/2055920 swapFree=4192812/4192956
[pid=19089] ppid=19087 vsize=6196 CPUtime=0.67
/proc/19089/stat : 19089 (pcs.big) R 19087 19089 16378 0 -1 4194304 1258 823 0 0 67 0 0 0 23 0 1 0 59159570 6344704 867 996147200 134512640 135215973 4294956304 18446744073709551615 134590083 0 0 4096 0 0 0 0 17 1 0 0
/proc/19089/statm: 1549 867 408 171 0 474 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 6196

[startup+1.50192 s]
/proc/loadavg: 1.92 1.99 1.99 3/76 19095
/proc/meminfo: memFree=1494200/2055920 swapFree=4192812/4192956
[pid=19089] ppid=19087 vsize=8052 CPUtime=1.47
/proc/19089/stat : 19089 (pcs.big) R 19087 19089 16378 0 -1 4194304 1751 823 0 0 146 1 0 0 25 0 1 0 59159570 8245248 1327 996147200 134512640 135215973 4294956304 18446744073709551615 4158960648 0 0 4096 0 0 0 0 17 1 0 0
/proc/19089/statm: 2013 1327 408 171 0 938 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 8052

[startup+3.1012 s]
/proc/loadavg: 1.92 1.99 1.99 3/76 19095
/proc/meminfo: memFree=1491256/2055920 swapFree=4192812/4192956
[pid=19089] ppid=19087 vsize=11944 CPUtime=3.05
/proc/19089/stat : 19089 (pcs.big) R 19087 19089 16378 0 -1 4194304 2745 823 0 0 304 1 0 0 25 0 1 0 59159570 12230656 2256 996147200 134512640 135215973 4294956304 18446744073709551615 9199161 0 0 4096 0 0 0 0 17 1 0 0
/proc/19089/statm: 2986 2256 408 171 0 1911 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 11944

[startup+6.30174 s]
/proc/loadavg: 1.93 1.99 1.99 3/76 19095
/proc/meminfo: memFree=1482552/2055920 swapFree=4192812/4192956
[pid=19089] ppid=19087 vsize=19340 CPUtime=6.22
/proc/19089/stat : 19089 (pcs.big) R 19087 19089 16378 0 -1 4194304 4712 823 0 0 620 2 0 0 25 0 1 0 59159570 19804160 4061 996147200 134512640 135215973 4294956304 18446744073709551615 4158960075 0 0 4096 0 0 0 0 17 1 0 0
/proc/19089/statm: 4835 4061 408 171 0 3760 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 19340

[startup+12.7018 s]
/proc/loadavg: 1.93 1.99 1.99 3/76 19095
/proc/meminfo: memFree=1465592/2055920 swapFree=4192812/4192956
[pid=19089] ppid=19087 vsize=34212 CPUtime=12.56
/proc/19089/stat : 19089 (pcs.big) R 19087 19089 16378 0 -1 4194304 8653 823 0 0 1251 5 0 0 25 0 1 0 59159570 35033088 7680 996147200 134512640 135215973 4294956304 18446744073709551615 134585369 0 0 4096 0 0 0 0 17 1 0 0
/proc/19089/statm: 8553 7680 408 171 0 7478 0
Current children cumulated CPU time (s) 12.56
Current children cumulated vsize (KiB) 34212

[startup+25.507 s]
/proc/loadavg: 1.95 1.99 1.99 3/76 19095
/proc/meminfo: memFree=1434232/2055920 swapFree=4192812/4192956
[pid=19089] ppid=19087 vsize=64204 CPUtime=25.25
/proc/19089/stat : 19089 (pcs.big) R 19087 19089 16378 0 -1 4194304 16535 823 0 0 2515 10 0 0 25 0 1 0 59159570 65744896 14920 996147200 134512640 135215973 4294956304 18446744073709551615 134640905 0 0 4096 0 0 0 0 17 1 0 0
/proc/19089/statm: 16051 14920 408 171 0 14976 0
Current children cumulated CPU time (s) 25.25
Current children cumulated vsize (KiB) 64204

[startup+51.1013 s]
/proc/loadavg: 1.96 1.99 1.99 3/76 19095
/proc/meminfo: memFree=1379704/2055920 swapFree=4192812/4192956
[pid=19089] ppid=19087 vsize=120512 CPUtime=50.6
/proc/19089/stat : 19089 (pcs.big) R 19087 19089 16378 0 -1 4194304 31416 823 0 0 5041 19 0 0 25 0 1 0 59159570 123404288 28519 996147200 134512640 135215973 4294956304 18446744073709551615 9199238 0 0 4096 0 0 0 0 17 1 0 0
/proc/19089/statm: 30128 28519 408 171 0 29053 0
Current children cumulated CPU time (s) 50.6
Current children cumulated vsize (KiB) 120512

[startup+102.302 s]
/proc/loadavg: 1.98 1.99 1.99 3/76 19095
/proc/meminfo: memFree=1269176/2055920 swapFree=4192812/4192956
[pid=19089] ppid=19087 vsize=234776 CPUtime=101.32
/proc/19089/stat : 19089 (pcs.big) R 19087 19089 16378 0 -1 4194304 61549 823 0 0 10095 37 0 0 25 0 1 0 59159570 240410624 56090 996147200 134512640 135215973 4294956304 18446744073709551615 4158960000 0 0 4096 0 0 0 0 17 1 0 0
/proc/19089/statm: 58694 56090 408 171 0 57619 0
Current children cumulated CPU time (s) 101.32
Current children cumulated vsize (KiB) 234776

[startup+162.301 s]
/proc/loadavg: 2.04 2.00 2.00 3/76 19095
/proc/meminfo: memFree=1139320/2055920 swapFree=4192812/4192956
[pid=19089] ppid=19087 vsize=358188 CPUtime=160.75
/proc/19089/stat : 19089 (pcs.big) R 19087 19089 16378 0 -1 4194304 94220 823 0 0 16021 54 0 0 25 0 1 0 59159570 366784512 87736 996147200 134512640 135215973 4294956304 18446744073709551615 134590594 0 0 4096 0 0 0 0 17 1 0 0
/proc/19089/statm: 89547 87736 408 171 0 88472 0
Current children cumulated CPU time (s) 160.75
Current children cumulated vsize (KiB) 358188

[startup+222.302 s]
/proc/loadavg: 2.06 2.01 2.00 3/76 19095
/proc/meminfo: memFree=1018872/2055920 swapFree=4192812/4192956
[pid=19089] ppid=19087 vsize=484660 CPUtime=220.19
/proc/19089/stat : 19089 (pcs.big) R 19087 19089 16378 0 -1 4194304 127659 823 0 0 21944 75 0 0 25 0 1 0 59159570 496291840 117078 996147200 134512640 135215973 4294956304 18446744073709551615 9167427 0 0 4096 0 0 0 0 17 1 0 0
/proc/19089/statm: 121165 117078 408 171 0 120090 0
Current children cumulated CPU time (s) 220.19
Current children cumulated vsize (KiB) 484660

[startup+282.302 s]
/proc/loadavg: 2.10 2.04 2.01 3/76 19095
/proc/meminfo: memFree=896568/2055920 swapFree=4192812/4192956
[pid=19089] ppid=19087 vsize=599060 CPUtime=279.62
/proc/19089/stat : 19089 (pcs.big) R 19087 19089 16378 0 -1 4194304 158090 823 0 0 27869 93 0 0 25 0 1 0 59159570 613437440 147509 996147200 134512640 135215973 4294956304 18446744073709551615 4158960012 0 0 4096 0 0 0 0 17 1 0 0
/proc/19089/statm: 149765 147509 408 171 0 148690 0
Current children cumulated CPU time (s) 279.62
Current children cumulated vsize (KiB) 599060

[startup+342.307 s]
/proc/loadavg: 2.07 2.04 2.01 3/76 19095
/proc/meminfo: memFree=763320/2055920 swapFree=4192812/4192956
[pid=19089] ppid=19087 vsize=728196 CPUtime=339.06
/proc/19089/stat : 19089 (pcs.big) R 19087 19089 16378 0 -1 4194304 192054 823 0 0 33794 112 0 0 25 0 1 0 59159570 745672704 179424 996147200 134512640 135215973 4294956304 18446744073709551615 134587307 0 0 4096 0 0 0 0 17 1 0 0
/proc/19089/statm: 182049 179424 408 171 0 180974 0
Current children cumulated CPU time (s) 339.06
Current children cumulated vsize (KiB) 728196

[startup+402.302 s]
/proc/loadavg: 2.02 2.03 2.00 3/76 19095
/proc/meminfo: memFree=643384/2055920 swapFree=4192812/4192956
[pid=19089] ppid=19087 vsize=872940 CPUtime=398.49
/proc/19089/stat : 19089 (pcs.big) R 19087 19089 16378 0 -1 4194304 229976 823 0 0 39716 133 0 0 25 0 1 0 59159570 893890560 209153 996147200 134512640 135215973 4294956304 18446744073709551615 134590099 0 0 4096 0 0 0 0 17 1 0 0
/proc/19089/statm: 218235 209153 408 171 0 217160 0
Current children cumulated CPU time (s) 398.49
Current children cumulated vsize (KiB) 872940



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+427.901 s]
/proc/loadavg: 2.01 2.03 2.00 3/76 19095
/proc/meminfo: memFree=589624/2055920 swapFree=4192812/4192956
[pid=19089] ppid=19087 vsize=921628 CPUtime=423.85
/proc/19089/stat : 19089 (pcs.big) R 19087 19089 16378 0 -1 4194304 242860 823 0 0 42245 140 0 0 25 0 1 0 59159570 943747072 222037 996147200 134512640 135215973 4294956304 18446744073709551615 134532659 0 0 4096 0 0 0 0 17 1 0 0
/proc/19089/statm: 230407 222037 408 171 0 229332 0
Current children cumulated CPU time (s) 423.85
Current children cumulated vsize (KiB) 921628

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

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

[startup+428.006 s]
/proc/loadavg: 2.01 2.03 2.00 3/77 19096
/proc/meminfo: memFree=1205872/2055920 swapFree=4192812/4192956
[pid=19089] ppid=19087 vsize=0 CPUtime=423.95
/proc/19089/stat : 19089 (pcs.big) R 19087 19089 16378 0 -1 4195332 242860 823 0 0 42245 150 0 0 25 0 1 0 59159570 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/19089/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 423.95
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 428.056
CPU time (s): 424.013
CPU user time (s): 422.46
CPU system time (s): 1.55276
CPU usage (%): 99.0554
Max. virtual memory (cumulated for all children) (KiB): 921628

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 422.46
system time used= 1.55276
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 243683
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= 22
involuntary context switches= 9234

runsolver used 0.493924 second user time and 1.46678 second system time

The end

Launcher Data 

Begin job on node68 at 2009-07-16 07:09:29
IDJOB=2082341
IDBENCH=57573
IDSOLVER=734
FILE ID=node68/2082341-1247720969
PBS_JOBID= 9521347
Free space on /tmp= 66420 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-13.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2082341-1247720969/watcher-2082341-1247720969 -o /tmp/evaluation-result-2082341-1247720969/solver-2082341-1247720969 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1543316491 HOME/instance-2082341-1247720969.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= ff00458be29b09ed6326f7909245998b
RANDOM SEED=1543316491

node68.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		: 3000.258
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		: 3000.258
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:       1498400 kB
Buffers:         72464 kB
Cached:         267128 kB
SwapCached:          0 kB
Active:         225708 kB
Inactive:       263480 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1498400 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1756 kB
Writeback:           0 kB
Mapped:         161436 kB
Slab:            52996 kB
Committed_AS:   728936 kB
PageTables:       2208 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66416 MiB
End job on node68 at 2009-07-16 07:16:39