Trace number 2086917

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) 447.725 449.95

General information on the benchmark

Namecsp/langford4/
normalized-langford-4-17.xml
MD5SUM3fe3aa089f1f308c838f4e4f77a704e4
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 benchmark651.328
Satisfiable
(Un)Satisfiability was proved
Number of variables68
Number of constraints2329
Maximum constraint arity2
Maximum domain size68
Number of constraints which are defined in extension0
Number of constraints which are defined in intension2329
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
0.18/0.21	c Seed is 511406121
0.18/0.21	c Constructing HOME/instance-2086917-1247726964.xml 
0.18/0.21	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,V60,V61,V62,V63,V64,V65,V66,V67,V0)
0.18/0.21	c  with 2330 constraints
0.18/0.21	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-2086917-1247726964/watcher-2086917-1247726964 -o /tmp/evaluation-result-2086917-1247726964/solver-2086917-1247726964 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 511406121 HOME/instance-2086917-1247726964.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: 2.02 2.00 2.00 4/81 13722
/proc/meminfo: memFree=1551560/2055920 swapFree=4192812/4192956
[pid=13722] ppid=13720 vsize=5356 CPUtime=0
/proc/13722/stat : 13722 (pcssolve) R 13720 13722 13271 0 -1 4194304 273 0 0 0 0 0 0 0 20 0 1 0 59763237 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 237788261023 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/13722/statm: 1339 241 200 169 0 50 0
[pid=13723] ppid=13722 vsize=5356 CPUtime=0
/proc/13723/stat : 13723 (pcssolve) R 13722 13722 13271 0 -1 4194368 0 0 0 0 0 0 0 0 20 0 1 0 59763237 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 237788261023 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/13723/statm: 1339 241 200 169 0 50 0

[startup+0.10158 s]
/proc/loadavg: 2.02 2.00 2.00 4/81 13722
/proc/meminfo: memFree=1551560/2055920 swapFree=4192812/4192956
[pid=13722] ppid=13720 vsize=5076 CPUtime=0.08
/proc/13722/stat : 13722 (pcs.big) R 13720 13722 13271 0 -1 4194304 941 656 0 0 8 0 0 0 18 0 1 0 59763237 5197824 572 996147200 134512640 135215973 4294956304 18446744073709551615 134585720 0 0 4096 0 0 0 0 17 1 0 0
/proc/13722/statm: 1269 572 399 171 0 194 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5076

[startup+0.202593 s]
/proc/loadavg: 2.02 2.00 2.00 4/81 13722
/proc/meminfo: memFree=1551560/2055920 swapFree=4192812/4192956
[pid=13722] ppid=13720 vsize=5688 CPUtime=0.18
/proc/13722/stat : 13722 (pcs.big) R 13720 13722 13271 0 -1 4194304 1099 656 0 0 18 0 0 0 18 0 1 0 59763237 5824512 730 996147200 134512640 135215973 4294956304 18446744073709551615 135095049 0 0 4096 0 0 0 0 17 1 0 0
/proc/13722/statm: 1422 730 408 171 0 347 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 5688

[startup+0.301611 s]
/proc/loadavg: 2.02 2.00 2.00 4/81 13722
/proc/meminfo: memFree=1551560/2055920 swapFree=4192812/4192956
[pid=13722] ppid=13720 vsize=5816 CPUtime=0.28
/proc/13722/stat : 13722 (pcs.big) R 13720 13722 13271 0 -1 4194304 1127 656 0 0 28 0 0 0 19 0 1 0 59763237 5955584 758 996147200 134512640 135215973 4294956304 18446744073709551615 4158960153 0 0 4096 0 0 0 0 17 1 0 0
/proc/13722/statm: 1454 758 408 171 0 379 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5816

[startup+0.701685 s]
/proc/loadavg: 2.02 2.00 2.00 4/81 13722
/proc/meminfo: memFree=1551560/2055920 swapFree=4192812/4192956
[pid=13722] ppid=13720 vsize=6724 CPUtime=0.67
/proc/13722/stat : 13722 (pcs.big) R 13720 13722 13271 0 -1 4194304 1365 656 0 0 67 0 0 0 23 0 1 0 59763237 6885376 996 996147200 134512640 135215973 4294956304 18446744073709551615 134532949 0 0 4096 0 0 0 0 17 1 0 0
/proc/13722/statm: 1681 996 408 171 0 606 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 6724

[startup+1.50183 s]
/proc/loadavg: 2.02 2.00 2.00 3/82 13727
/proc/meminfo: memFree=1548096/2055920 swapFree=4192812/4192956
[pid=13722] ppid=13720 vsize=8560 CPUtime=1.47
/proc/13722/stat : 13722 (pcs.big) R 13720 13722 13271 0 -1 4194304 1822 656 0 0 147 0 0 0 25 0 1 0 59763237 8765440 1453 996147200 134512640 135215973 4294956304 18446744073709551615 4158960021 0 0 4096 0 0 0 0 17 1 0 0
/proc/13722/statm: 2140 1453 408 171 0 1065 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 8560

[startup+3.10113 s]
/proc/loadavg: 2.02 2.00 2.00 3/82 13727
/proc/meminfo: memFree=1545856/2055920 swapFree=4192812/4192956
[pid=13722] ppid=13720 vsize=11824 CPUtime=3.06
/proc/13722/stat : 13722 (pcs.big) R 13720 13722 13271 0 -1 4194304 2669 656 0 0 305 1 0 0 25 0 1 0 59763237 12107776 2267 996147200 134512640 135215973 4294956304 18446744073709551615 3039319 0 0 4096 0 0 0 0 17 1 0 0
/proc/13722/statm: 2956 2267 408 171 0 1881 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 11824

[startup+6.30271 s]
/proc/loadavg: 2.01 2.00 2.00 3/82 13727
/proc/meminfo: memFree=1537984/2055920 swapFree=4192812/4192956
[pid=13722] ppid=13720 vsize=19608 CPUtime=6.24
/proc/13722/stat : 13722 (pcs.big) R 13720 13722 13271 0 -1 4194304 4640 656 0 0 623 1 0 0 25 0 1 0 59763237 20078592 4173 996147200 134512640 135215973 4294956304 18446744073709551615 3040891 0 0 4096 0 0 0 0 17 1 0 0
/proc/13722/statm: 4902 4173 408 171 0 3827 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 19608

[startup+12.7019 s]
/proc/loadavg: 2.01 2.00 2.00 3/82 13727
/proc/meminfo: memFree=1523584/2055920 swapFree=4192812/4192956
[pid=13722] ppid=13720 vsize=34036 CPUtime=12.61
/proc/13722/stat : 13722 (pcs.big) R 13720 13722 13271 0 -1 4194304 8367 656 0 0 1258 3 0 0 25 0 1 0 59763237 34852864 7738 996147200 134512640 135215973 4294956304 18446744073709551615 134532916 0 0 4096 0 0 0 0 17 1 0 0
/proc/13722/statm: 8509 7738 408 171 0 7434 0
Current children cumulated CPU time (s) 12.61
Current children cumulated vsize (KiB) 34036

[startup+25.5012 s]
/proc/loadavg: 2.01 2.00 2.00 3/82 13727
/proc/meminfo: memFree=1494272/2055920 swapFree=4192812/4192956
[pid=13722] ppid=13720 vsize=62540 CPUtime=25.35
/proc/13722/stat : 13722 (pcs.big) R 13720 13722 13271 0 -1 4194304 15654 656 0 0 2528 7 0 0 25 0 1 0 59763237 64040960 14768 996147200 134512640 135215973 4294956304 18446744073709551615 134590418 0 0 4096 0 0 0 0 17 1 0 0
/proc/13722/statm: 15635 14768 408 171 0 14560 0
Current children cumulated CPU time (s) 25.35
Current children cumulated vsize (KiB) 62540

[startup+51.1019 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 13727
/proc/meminfo: memFree=1439808/2055920 swapFree=4192812/4192956
[pid=13722] ppid=13720 vsize=118232 CPUtime=50.83
/proc/13722/stat : 13722 (pcs.big) R 13720 13722 13271 0 -1 4194304 29963 656 0 0 5070 13 0 0 25 0 1 0 59763237 121069568 28499 996147200 134512640 135215973 4294956304 18446744073709551615 134599882 0 0 4096 0 0 0 0 17 1 0 0
/proc/13722/statm: 29558 28499 408 171 0 28483 0
Current children cumulated CPU time (s) 50.83
Current children cumulated vsize (KiB) 118232

[startup+102.301 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 13727
/proc/meminfo: memFree=1331072/2055920 swapFree=4192812/4192956
[pid=13722] ppid=13720 vsize=227236 CPUtime=101.78
/proc/13722/stat : 13722 (pcs.big) R 13720 13722 13271 0 -1 4194304 57937 656 0 0 10151 27 0 0 25 0 1 0 59763237 232689664 55319 996147200 134512640 135215973 4294956304 18446744073709551615 134533376 0 0 4096 0 0 0 0 17 1 0 0
/proc/13722/statm: 56809 55319 408 171 0 55734 0
Current children cumulated CPU time (s) 101.78
Current children cumulated vsize (KiB) 227236

[startup+162.301 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 13729
/proc/meminfo: memFree=1210944/2055920 swapFree=4192812/4192956
[pid=13722] ppid=13720 vsize=353348 CPUtime=161.48
/proc/13722/stat : 13722 (pcs.big) R 13720 13722 13271 0 -1 4194304 90298 656 0 0 16108 40 0 0 25 0 1 0 59763237 361828352 85631 996147200 134512640 135215973 4294956304 18446744073709551615 4158960113 0 0 4096 0 0 0 0 17 1 0 0
/proc/13722/statm: 88337 85631 408 171 0 87262 0
Current children cumulated CPU time (s) 161.48
Current children cumulated vsize (KiB) 353348

[startup+222.306 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 13729
/proc/meminfo: memFree=1092288/2055920 swapFree=4192812/4192956
[pid=13722] ppid=13720 vsize=467460 CPUtime=221.18
/proc/13722/stat : 13722 (pcs.big) R 13720 13722 13271 0 -1 4194304 119659 656 0 0 22065 53 0 0 25 0 1 0 59763237 478679040 114992 996147200 134512640 135215973 4294956304 18446744073709551615 134588312 0 0 4096 0 0 0 0 17 1 0 0
/proc/13722/statm: 116865 114992 408 171 0 115790 0
Current children cumulated CPU time (s) 221.18
Current children cumulated vsize (KiB) 467460

[startup+282.301 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 13729
/proc/meminfo: memFree=972032/2055920 swapFree=4192812/4192956
[pid=13722] ppid=13720 vsize=586564 CPUtime=280.88
/proc/13722/stat : 13722 (pcs.big) R 13720 13722 13271 0 -1 4194304 150243 656 0 0 28021 67 0 0 25 0 1 0 59763237 600641536 145319 996147200 134512640 135215973 4294956304 18446744073709551615 3038753 0 0 4096 0 0 0 0 17 1 0 0
/proc/13722/statm: 146641 145319 408 171 0 145566 0
Current children cumulated CPU time (s) 280.88
Current children cumulated vsize (KiB) 586564

[startup+342.301 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 13729
/proc/meminfo: memFree=853440/2055920 swapFree=4192812/4192956
[pid=13722] ppid=13720 vsize=716612 CPUtime=340.59
/proc/13722/stat : 13722 (pcs.big) R 13720 13722 13271 0 -1 4194304 183609 656 0 0 33975 84 0 0 25 0 1 0 59763237 733810688 174588 996147200 134512640 135215973 4294956304 18446744073709551615 134533092 0 0 4096 0 0 0 0 17 1 0 0
/proc/13722/statm: 179153 174588 408 171 0 178078 0
Current children cumulated CPU time (s) 340.59
Current children cumulated vsize (KiB) 716612

[startup+402.301 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 13729
/proc/meminfo: memFree=737600/2055920 swapFree=4192812/4192956
[pid=13722] ppid=13720 vsize=830248 CPUtime=400.29
/proc/13722/stat : 13722 (pcs.big) R 13720 13722 13271 0 -1 4194304 212866 656 0 0 39930 99 0 0 25 0 1 0 59763237 850173952 203845 996147200 134512640 135215973 4294956304 18446744073709551615 134647434 0 0 4096 0 0 0 0 17 1 0 0
/proc/13722/statm: 207562 203845 408 171 0 206487 0
Current children cumulated CPU time (s) 400.29
Current children cumulated vsize (KiB) 830248



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+449.801 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 13729
/proc/meminfo: memFree=641728/2055920 swapFree=4192812/4192956
[pid=13722] ppid=13720 vsize=921616 CPUtime=447.56
/proc/13722/stat : 13722 (pcs.big) R 13720 13722 13271 0 -1 4194304 236327 656 0 0 44646 110 0 0 25 0 1 0 59763237 943734784 227306 996147200 134512640 135215973 4294956304 18446744073709551615 134609871 0 0 4096 0 0 0 0 17 1 0 0
/proc/13722/statm: 230404 227306 408 171 0 229329 0
Current children cumulated CPU time (s) 447.56
Current children cumulated vsize (KiB) 921616

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

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

[startup+449.906 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 13730
/proc/meminfo: memFree=1271544/2055920 swapFree=4192812/4192956
[pid=13722] ppid=13720 vsize=0 CPUtime=447.67
/proc/13722/stat : 13722 (pcs.big) R 13720 13722 13271 0 -1 4195332 236327 656 0 0 44646 121 0 0 25 0 1 0 59763237 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/13722/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 447.67
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 449.95
CPU time (s): 447.725
CPU user time (s): 446.469
CPU system time (s): 1.25581
CPU usage (%): 99.5056
Max. virtual memory (cumulated for all children) (KiB): 921616

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 446.469
system time used= 1.25581
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 236983
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= 14055

runsolver used 0.45393 second user time and 1.19682 second system time

The end

Launcher Data 

Begin job on node24 at 2009-07-16 08:49:24
IDJOB=2086917
IDBENCH=58659
IDSOLVER=734
FILE ID=node24/2086917-1247726964
PBS_JOBID= 9521525
Free space on /tmp= 66412 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/langford4/normalized-langford-4-17.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2086917-1247726964/watcher-2086917-1247726964 -o /tmp/evaluation-result-2086917-1247726964/solver-2086917-1247726964 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 511406121 HOME/instance-2086917-1247726964.xml

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

MD5SUM BENCH= 3fe3aa089f1f308c838f4e4f77a704e4
RANDOM SEED=511406121

node24.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		: 3000.287
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		: 3000.287
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:       1552040 kB
Buffers:         80252 kB
Cached:         305240 kB
SwapCached:          0 kB
Active:          73200 kB
Inactive:       345828 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1552040 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1992 kB
Writeback:           0 kB
Mapped:          53956 kB
Slab:            69868 kB
Committed_AS:   588116 kB
PageTables:       1932 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= 66412 MiB
End job on node24 at 2009-07-16 08:56:56