Trace number 2082297

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) 555.13 560.45

General information on the benchmark

Namecsp/langford2/
normalized-langford-2-30.xml
MD5SUM684bd73868b3c19d67d9dc2b2bd45b2f
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables60
Number of constraints1800
Maximum constraint arity2
Maximum domain size60
Number of constraints which are defined in extension0
Number of constraints which are defined in intension1800
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c has big domains
0.00/0.01	c big-domain mode
0.08/0.15	c Seed is 1424540790
0.08/0.15	c Constructing HOME/instance-2082297-1247720861.xml 
0.08/0.15	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,V26,V27,V28,V29,V30,V31,V32,V33,V34,V35,V36,V37,V38,V39,V40,V41,V42,V43,V44,V45,V46,V47,V48,V49,V50,V51,V52,V53,V54,V55,V56,V57,V58,V59,V0)
0.08/0.15	c  with 1801 constraints
0.08/0.15	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-2082297-1247720861/watcher-2082297-1247720861 -o /tmp/evaluation-result-2082297-1247720861/solver-2082297-1247720861 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1424540790 HOME/instance-2082297-1247720861.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: 2.09 2.06 2.07 4/81 18181
/proc/meminfo: memFree=1607792/2055920 swapFree=4192812/4192956
[pid=18181] ppid=18179 vsize=18576 CPUtime=0
/proc/18181/stat : 18181 (runsolver) R 18179 18181 16245 0 -1 4194368 15 0 0 0 0 0 0 0 21 0 1 0 59150271 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 213116316967 0 0 4096 24578 0 0 0 17 1 0 0
/proc/18181/statm: 4644 284 249 26 0 2626 0

[startup+0.0992541 s]
/proc/loadavg: 2.09 2.06 2.07 4/81 18181
/proc/meminfo: memFree=1607792/2055920 swapFree=4192812/4192956
[pid=18181] ppid=18179 vsize=5176 CPUtime=0.08
/proc/18181/stat : 18181 (pcs.big) R 18179 18181 16245 0 -1 4194304 1003 656 0 0 8 0 0 0 18 0 1 0 59150271 5300224 634 996147200 134512640 135215973 4294956304 18446744073709551615 134587239 0 0 4096 0 0 0 0 17 1 0 0
/proc/18181/statm: 1294 634 407 171 0 219 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5176

[startup+0.101252 s]
/proc/loadavg: 2.09 2.06 2.07 4/81 18181
/proc/meminfo: memFree=1607792/2055920 swapFree=4192812/4192956
[pid=18181] ppid=18179 vsize=5176 CPUtime=0.08
/proc/18181/stat : 18181 (pcs.big) R 18179 18181 16245 0 -1 4194304 1005 656 0 0 8 0 0 0 18 0 1 0 59150271 5300224 636 996147200 134512640 135215973 4294956304 18446744073709551615 134590086 0 0 4096 0 0 0 0 17 1 0 0
/proc/18181/statm: 1294 636 407 171 0 219 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5176

[startup+0.301292 s]
/proc/loadavg: 2.09 2.06 2.07 4/81 18181
/proc/meminfo: memFree=1607792/2055920 swapFree=4192812/4192956
[pid=18181] ppid=18179 vsize=5572 CPUtime=0.28
/proc/18181/stat : 18181 (pcs.big) R 18179 18181 16245 0 -1 4194304 1083 656 0 0 28 0 0 0 20 0 1 0 59150271 5705728 714 996147200 134512640 135215973 4294956304 18446744073709551615 4158960160 0 0 4096 0 0 0 0 17 1 0 0
/proc/18181/statm: 1393 714 409 171 0 318 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5572

[startup+0.701366 s]
/proc/loadavg: 2.09 2.06 2.07 4/81 18181
/proc/meminfo: memFree=1607792/2055920 swapFree=4192812/4192956
[pid=18181] ppid=18179 vsize=5956 CPUtime=0.68
/proc/18181/stat : 18181 (pcs.big) R 18179 18181 16245 0 -1 4194304 1193 656 0 0 68 0 0 0 23 0 1 0 59150271 6098944 824 996147200 134512640 135215973 4294956304 18446744073709551615 134583589 0 0 4096 0 0 0 0 17 1 0 0
/proc/18181/statm: 1489 824 409 171 0 414 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 5956

[startup+1.50152 s]
/proc/loadavg: 2.09 2.06 2.07 3/82 18186
/proc/meminfo: memFree=1605480/2055920 swapFree=4192812/4192956
[pid=18181] ppid=18179 vsize=7520 CPUtime=1.47
/proc/18181/stat : 18181 (pcs.big) R 18179 18181 16245 0 -1 4194304 1563 656 0 0 147 0 0 0 25 0 1 0 59150271 7700480 1194 996147200 134512640 135215973 4294956304 18446744073709551615 134599825 0 0 4096 0 0 0 0 17 1 0 0
/proc/18181/statm: 1880 1194 409 171 0 805 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 7520

[startup+3.10182 s]
/proc/loadavg: 2.09 2.06 2.07 3/82 18186
/proc/meminfo: memFree=1603432/2055920 swapFree=4192812/4192956
[pid=18181] ppid=18179 vsize=9896 CPUtime=3.06
/proc/18181/stat : 18181 (pcs.big) R 18179 18181 16245 0 -1 4194304 2187 656 0 0 305 1 0 0 25 0 1 0 59150271 10133504 1785 996147200 134512640 135215973 4294956304 18446744073709551615 4159345951 0 0 4096 0 0 0 0 17 1 0 0
/proc/18181/statm: 2474 1785 409 171 0 1399 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 9896

[startup+6.30143 s]
/proc/loadavg: 2.08 2.06 2.07 3/82 18186
/proc/meminfo: memFree=1597608/2055920 swapFree=4192812/4192956
[pid=18181] ppid=18179 vsize=16172 CPUtime=6.22
/proc/18181/stat : 18181 (pcs.big) R 18179 18181 16245 0 -1 4194304 3798 656 0 0 620 2 0 0 25 0 1 0 59150271 16560128 3331 996147200 134512640 135215973 4294956304 18446744073709551615 134532991 0 0 4096 0 0 0 0 17 1 0 0
/proc/18181/statm: 4043 3331 409 171 0 2968 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 16172

[startup+12.7016 s]
/proc/loadavg: 2.07 2.06 2.07 3/82 18186
/proc/meminfo: memFree=1585192/2055920 swapFree=4192812/4192956
[pid=18181] ppid=18179 vsize=27968 CPUtime=12.57
/proc/18181/stat : 18181 (pcs.big) R 18179 18181 16245 0 -1 4194304 6882 656 0 0 1253 4 0 0 25 0 1 0 59150271 28639232 6221 996147200 134512640 135215973 4294956304 18446744073709551615 3596440 0 0 4096 0 0 0 0 17 1 0 0
/proc/18181/statm: 6992 6221 409 171 0 5917 0
Current children cumulated CPU time (s) 12.57
Current children cumulated vsize (KiB) 27968

[startup+25.5011 s]
/proc/loadavg: 2.06 2.06 2.07 3/82 18186
/proc/meminfo: memFree=1562984/2055920 swapFree=4192812/4192956
[pid=18181] ppid=18179 vsize=49608 CPUtime=25.24
/proc/18181/stat : 18181 (pcs.big) R 18179 18181 16245 0 -1 4194304 12557 656 0 0 2517 7 0 0 25 0 1 0 59150271 50798592 11639 996147200 134512640 135215973 4294956304 18446744073709551615 134589030 0 0 4096 0 0 0 0 17 1 0 0
/proc/18181/statm: 12402 11639 409 171 0 11327 0
Current children cumulated CPU time (s) 25.24
Current children cumulated vsize (KiB) 49608

[startup+51.1019 s]
/proc/loadavg: 2.04 2.05 2.06 3/82 18186
/proc/meminfo: memFree=1517352/2055920 swapFree=4192812/4192956
[pid=18181] ppid=18179 vsize=96028 CPUtime=50.6
/proc/18181/stat : 18181 (pcs.big) R 18179 18181 16245 0 -1 4194304 24655 656 0 0 5045 15 0 0 25 0 1 0 59150271 98332672 23095 996147200 134512640 135215973 4294956304 18446744073709551615 134585388 0 0 4096 0 0 0 0 17 1 0 0
/proc/18181/statm: 24007 23095 409 171 0 22932 0
Current children cumulated CPU time (s) 50.6
Current children cumulated vsize (KiB) 96028

[startup+102.307 s]
/proc/loadavg: 2.01 2.04 2.06 3/82 18186
/proc/meminfo: memFree=1433960/2055920 swapFree=4192812/4192956
[pid=18181] ppid=18179 vsize=179504 CPUtime=101.31
/proc/18181/stat : 18181 (pcs.big) R 18179 18181 16245 0 -1 4194304 46559 656 0 0 10105 26 0 0 25 0 1 0 59150271 183812096 43717 996147200 134512640 135215973 4294956304 18446744073709551615 3599798 0 0 4096 0 0 0 0 17 1 0 0
/proc/18181/statm: 44876 43717 409 171 0 43801 0
Current children cumulated CPU time (s) 101.31
Current children cumulated vsize (KiB) 179504

[startup+162.302 s]
/proc/loadavg: 2.00 2.03 2.05 3/82 18186
/proc/meminfo: memFree=1336936/2055920 swapFree=4192812/4192956
[pid=18181] ppid=18179 vsize=282836 CPUtime=160.74
/proc/18181/stat : 18181 (pcs.big) R 18179 18181 16245 0 -1 4194304 73495 656 0 0 16034 40 0 0 25 0 1 0 59150271 289624064 68091 996147200 134512640 135215973 4294956304 18446744073709551615 135095257 0 0 4096 0 0 0 0 17 1 0 0
/proc/18181/statm: 70709 68091 409 171 0 69634 0
Current children cumulated CPU time (s) 160.74
Current children cumulated vsize (KiB) 282836

[startup+222.301 s]
/proc/loadavg: 2.00 2.02 2.05 3/82 18186
/proc/meminfo: memFree=1242280/2055920 swapFree=4192812/4192956
[pid=18181] ppid=18179 vsize=371924 CPUtime=220.17
/proc/18181/stat : 18181 (pcs.big) R 18179 18181 16245 0 -1 4194304 96944 656 0 0 21961 56 0 0 25 0 1 0 59150271 380850176 91540 996147200 134512640 135215973 4294956304 18446744073709551615 3596357 0 0 4096 0 0 0 0 17 1 0 0
/proc/18181/statm: 92981 91540 409 171 0 91906 0
Current children cumulated CPU time (s) 220.17
Current children cumulated vsize (KiB) 371924

[startup+282.302 s]
/proc/loadavg: 2.00 2.02 2.04 3/82 18186
/proc/meminfo: memFree=1152744/2055920 swapFree=4192812/4192956
[pid=18181] ppid=18179 vsize=477760 CPUtime=279.61
/proc/18181/stat : 18181 (pcs.big) R 18179 18181 16245 0 -1 4194304 124597 656 0 0 27889 72 0 0 25 0 1 0 59150271 489226240 114071 996147200 134512640 135215973 4294956304 18446744073709551615 134589275 0 0 4096 0 0 0 0 17 1 0 0
/proc/18181/statm: 119440 114071 409 171 0 118365 0
Current children cumulated CPU time (s) 279.61
Current children cumulated vsize (KiB) 477760

[startup+342.303 s]
/proc/loadavg: 2.00 2.01 2.04 3/82 18186
/proc/meminfo: memFree=1067944/2055920 swapFree=4192812/4192956
[pid=18181] ppid=18179 vsize=556904 CPUtime=339.03
/proc/18181/stat : 18181 (pcs.big) R 18179 18181 16245 0 -1 4194304 145580 656 0 0 33816 87 0 0 25 0 1 0 59150271 570269696 135054 996147200 134512640 135215973 4294956304 18446744073709551615 3632725 0 0 4096 0 0 0 0 17 1 0 0
/proc/18181/statm: 139226 135054 409 171 0 138151 0
Current children cumulated CPU time (s) 339.03
Current children cumulated vsize (KiB) 556904

[startup+402.301 s]
/proc/loadavg: 2.00 2.01 2.03 3/82 18186
/proc/meminfo: memFree=984232/2055920 swapFree=4192812/4192956
[pid=18181] ppid=18179 vsize=636524 CPUtime=398.47
/proc/18181/stat : 18181 (pcs.big) R 18179 18181 16245 0 -1 4194304 166699 656 0 0 39745 102 0 0 25 0 1 0 59150271 651800576 156173 996147200 134512640 135215973 4294956304 18446744073709551615 4158960000 0 0 4096 0 0 0 0 17 1 0 0
/proc/18181/statm: 159131 156173 409 171 0 158056 0
Current children cumulated CPU time (s) 398.47
Current children cumulated vsize (KiB) 636524

[startup+462.302 s]
/proc/loadavg: 2.00 2.00 2.02 3/82 18186
/proc/meminfo: memFree=893224/2055920 swapFree=4192812/4192956
[pid=18181] ppid=18179 vsize=722012 CPUtime=457.9
/proc/18181/stat : 18181 (pcs.big) R 18179 18181 16245 0 -1 4194304 189235 656 0 0 45674 116 0 0 25 0 1 0 59150271 739340288 178709 996147200 134512640 135215973 4294956304 18446744073709551615 134532677 0 0 4096 0 0 0 0 17 1 0 0
/proc/18181/statm: 180503 178709 409 171 0 179428 0
Current children cumulated CPU time (s) 457.9
Current children cumulated vsize (KiB) 722012

[startup+522.302 s]
/proc/loadavg: 2.00 2.00 2.02 3/82 18186
/proc/meminfo: memFree=788584/2055920 swapFree=4192812/4192956
[pid=18181] ppid=18179 vsize=831300 CPUtime=517.33
/proc/18181/stat : 18181 (pcs.big) R 18179 18181 16245 0 -1 4194304 217612 656 0 0 51601 132 0 0 25 0 1 0 59150271 851251200 205037 996147200 134512640 135215973 4294956304 18446744073709551615 3600216 0 0 4096 0 0 0 0 17 1 0 0
/proc/18181/statm: 207825 205037 409 171 0 206750 0
Current children cumulated CPU time (s) 517.33
Current children cumulated vsize (KiB) 831300



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+560.302 s]
/proc/loadavg: 2.00 2.00 2.02 3/82 18186
/proc/meminfo: memFree=726440/2055920 swapFree=4192812/4192956
[pid=18181] ppid=18179 vsize=921704 CPUtime=554.97
/proc/18181/stat : 18181 (pcs.big) R 18179 18181 16245 0 -1 4194304 240906 656 0 0 55352 145 0 0 25 0 1 0 59150271 943824896 220138 996147200 134512640 135215973 4294956304 18446744073709551615 135096617 0 0 4096 0 0 0 0 17 1 0 0
/proc/18181/statm: 230426 220138 409 171 0 229351 0
Current children cumulated CPU time (s) 554.97
Current children cumulated vsize (KiB) 921704

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

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

[startup+560.408 s]
/proc/loadavg: 2.00 2.00 2.02 3/82 18186
/proc/meminfo: memFree=726440/2055920 swapFree=4192812/4192956
[pid=18181] ppid=18179 vsize=0 CPUtime=555.07
/proc/18181/stat : 18181 (pcs.big) R 18179 18181 16245 0 -1 4195332 240906 656 0 0 55352 155 0 0 25 0 1 0 59150271 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/18181/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 555.07
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 560.45
CPU time (s): 555.13
CPU user time (s): 553.532
CPU system time (s): 1.59776
CPU usage (%): 99.0507
Max. virtual memory (cumulated for all children) (KiB): 921704

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 553.532
system time used= 1.59776
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 241562
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= 19
involuntary context switches= 22643

runsolver used 0.825874 second user time and 1.73274 second system time

The end

Launcher Data 

Begin job on node37 at 2009-07-16 07:07:41
IDJOB=2082297
IDBENCH=57565
IDSOLVER=734
FILE ID=node37/2082297-1247720861
PBS_JOBID= 9521386
Free space on /tmp= 66396 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-30.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2082297-1247720861/watcher-2082297-1247720861 -o /tmp/evaluation-result-2082297-1247720861/solver-2082297-1247720861 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1424540790 HOME/instance-2082297-1247720861.xml

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

MD5SUM BENCH= 684bd73868b3c19d67d9dc2b2bd45b2f
RANDOM SEED=1424540790

node37.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		: 3000.260
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		: 3000.260
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:       1608272 kB
Buffers:         73504 kB
Cached:         255344 kB
SwapCached:          0 kB
Active:          72036 kB
Inactive:       291448 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1608272 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3220 kB
Writeback:           0 kB
Mapped:          55028 kB
Slab:            69276 kB
Committed_AS:   593964 kB
PageTables:       1856 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= 66396 MiB
End job on node37 at 2009-07-16 07:17:03