Trace number 269501

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, and are wall clock time (not CPU 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
VALCSP 3.1? (MO) 101.509 102.368

General information on the benchmark

Nametaillard/os-taillard-10/
os-taillard-10-100-1.xml
MD5SUM74cf29d3ab94d83fc52e373a6d01ad7d
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.428934
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables100
Number of constraints900
Maximum constraint arity2
Maximum domain size587
Number of constraints which are defined in extension0
Number of constraints which are defined in intension900
Global constraints used (with number of constraints)

Solver Data (download as text)



Verifier Data (download as text)




ERROR: Unexpected answer ! (SAT/UNSAT expected)
Got answer: 



Watcher Data (download as text)




runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node76/watcher-269501-1168980837 -o ROOT/results/node76/solver-269501-1168980837 -C 1800 -M 900 /tmp/evaluation/269501-1168980837/VALCSP /tmp/evaluation/269501-1168980837/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 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

/proc/loadavg: 1.56 1.16 0.79 4/75 18799
/proc/meminfo: memFree=1863072/2055888 swapFree=4095388/4096564
[pid=18798] ppid=18795 vsize=18544 CPUtime=0
/proc/18798/stat : 18798 (runsolver) D 18795 18798 18533 0 -1 4194368 15 0 0 0 0 0 0 0 19 0 1 0 246481013 18989056 278 18446744073709551615 4194304 4267372 548682069088 18446744073709551615 206843737111 0 0 4096 24578 18446744071563611212 0 0 17 1 0 0
/proc/18798/statm: 4636 278 243 17 0 2626 0

[startup+0.103908 s]
/proc/loadavg: 1.56 1.16 0.79 4/75 18799
/proc/meminfo: memFree=1863072/2055888 swapFree=4095388/4096564
[pid=18798] ppid=18795 vsize=3860 CPUtime=0.08
/proc/18798/stat : 18798 (VALCSP) R 18795 18798 18533 0 -1 4194304 716 0 0 0 8 0 0 0 19 0 1 0 246481013 3952640 694 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528607 0 0 4096 0 0 0 0 17 0 0 0
/proc/18798/statm: 965 694 64 8 0 636 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 3860

[startup+0.511982 s]
/proc/loadavg: 1.56 1.16 0.79 4/75 18799
/proc/meminfo: memFree=1863072/2055888 swapFree=4095388/4096564
[pid=18798] ppid=18795 vsize=8216 CPUtime=0.48
/proc/18798/stat : 18798 (VALCSP) R 18795 18798 18533 0 -1 4194304 1786 0 0 0 48 0 0 0 23 0 1 0 246481013 8413184 1764 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528746 0 0 4096 0 0 0 0 17 0 0 0
/proc/18798/statm: 2054 1764 64 8 0 1725 0
Current children cumulated CPU time (s) 0.48
Current children cumulated vsize (KiB) 8216

[startup+1.33315 s]
/proc/loadavg: 1.59 1.17 0.80 3/78 18802
/proc/meminfo: memFree=1835656/2055888 swapFree=4095388/4096564
[pid=18798] ppid=18795 vsize=16796 CPUtime=1.3
/proc/18798/stat : 18798 (VALCSP) R 18795 18798 18533 0 -1 4194304 3931 0 0 0 129 1 0 0 25 0 1 0 246481013 17199104 3909 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 0 0 0
/proc/18798/statm: 4199 3909 64 8 0 3870 0
Current children cumulated CPU time (s) 1.3
Current children cumulated vsize (KiB) 16796

[startup+2.97547 s]
/proc/loadavg: 1.59 1.17 0.80 3/78 18802
/proc/meminfo: memFree=1813640/2055888 swapFree=4095388/4096564
[pid=18798] ppid=18795 vsize=31976 CPUtime=2.93
/proc/18798/stat : 18798 (VALCSP) R 18795 18798 18533 0 -1 4194304 7729 0 0 0 291 2 0 0 25 0 1 0 246481013 32743424 7707 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 5253163 0 0 4096 0 0 0 0 17 0 0 0
/proc/18798/statm: 7994 7707 64 8 0 7665 0
Current children cumulated CPU time (s) 2.93
Current children cumulated vsize (KiB) 31976

[startup+6.25411 s]
/proc/loadavg: 1.59 1.17 0.80 3/78 18802
/proc/meminfo: memFree=1751496/2055888 swapFree=4095388/4096564
[pid=18798] ppid=18795 vsize=60752 CPUtime=6.18
/proc/18798/stat : 18798 (VALCSP) R 18795 18798 18533 0 -1 4194304 14946 0 0 0 613 5 0 0 25 0 1 0 246481013 62210048 14924 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528624 0 0 4096 0 0 0 0 17 0 0 0
/proc/18798/statm: 15188 14924 64 8 0 14859 0
Current children cumulated CPU time (s) 6.18
Current children cumulated vsize (KiB) 60752

[startup+12.7184 s]
/proc/loadavg: 1.65 1.20 0.81 3/78 18802
/proc/meminfo: memFree=1628440/2055888 swapFree=4095388/4096564
[pid=18798] ppid=18795 vsize=120548 CPUtime=12.59
/proc/18798/stat : 18798 (VALCSP) R 18795 18798 18533 0 -1 4194304 29881 0 0 0 1248 11 0 0 25 0 1 0 246481013 123441152 29859 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/18798/statm: 30137 29859 64 8 0 29808 0
Current children cumulated CPU time (s) 12.59
Current children cumulated vsize (KiB) 120548

[startup+25.5299 s]
/proc/loadavg: 1.71 1.23 0.82 3/78 18802
/proc/meminfo: memFree=1406040/2055888 swapFree=4095388/4096564
[pid=18798] ppid=18795 vsize=233804 CPUtime=25.31
/proc/18798/stat : 18798 (VALCSP) R 18795 18798 18533 0 -1 4194304 58182 0 0 0 2509 22 0 0 25 0 1 0 246481013 239415296 58160 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/18798/statm: 58451 58160 64 8 0 58122 0
Current children cumulated CPU time (s) 25.31
Current children cumulated vsize (KiB) 233804

[startup+51.1649 s]
/proc/loadavg: 1.81 1.29 0.85 3/78 18802
/proc/meminfo: memFree=940504/2055888 swapFree=4095388/4096564
[pid=18798] ppid=18795 vsize=463484 CPUtime=50.73
/proc/18798/stat : 18798 (VALCSP) R 18795 18798 18533 0 -1 4194304 115606 0 0 0 5029 44 0 0 25 0 1 0 246481013 474607616 115584 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/18798/statm: 115871 115584 64 8 0 115542 0
Current children cumulated CPU time (s) 50.73
Current children cumulated vsize (KiB) 463484



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+102.229 s]
/proc/loadavg: 1.87 1.40 0.92 2/73 18818
/proc/meminfo: memFree=940096/2055888 swapFree=4095388/4096564
[pid=18798] ppid=18795 vsize=922844 CPUtime=101.36
/proc/18798/stat : 18798 (VALCSP) R 18795 18798 18533 0 -1 4194304 230459 0 0 0 10048 88 0 0 25 0 1 0 246481013 944992256 230437 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528646 0 0 4096 0 0 0 0 17 1 0 0
/proc/18798/statm: 230711 230437 64 8 0 230382 0
Current children cumulated CPU time (s) 101.36
Current children cumulated vsize (KiB) 922844

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 102.368
CPU time (s): 101.509
CPU user time (s): 100.489
CPU system time (s): 1.01984
CPU usage (%): 99.1601
Max. virtual memory (cumulated for all children) (KiB): 922844

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 100.489
system time used= 1.01984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230459
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= 10
involuntary context switches= 2179

runsolver used 0.085986 s user time and 0.286956 s system time

The end



Launcher Data (download as text)




Begin job on node76 on Tue Jan 16 20:53:58 UTC 2007


IDJOB= 269501
IDBENCH= 6754
IDSOLVER= 90
FILE ID= node76/269501-1168980837

PBS_JOBID= 3566369

Free space on /tmp= 66652 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-10/os-taillard-10-100-1.xml
COMMAND LINE= /tmp/evaluation/269501-1168980837/VALCSP /tmp/evaluation/269501-1168980837/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node76/watcher-269501-1168980837 -o ROOT/results/node76/solver-269501-1168980837 -C 1800 -M 900  /tmp/evaluation/269501-1168980837/VALCSP /tmp/evaluation/269501-1168980837/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  74cf29d3ab94d83fc52e373a6d01ad7d

RANDOM SEED= 421431725

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.254
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	: 6006.17
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		: 3000.254
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	: 5999.42
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055888 kB
MemFree:       1864136 kB
Buffers:         14084 kB
Cached:          91720 kB
SwapCached:        276 kB
Active:          26388 kB
Inactive:        99552 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055888 kB
LowFree:       1864136 kB
SwapTotal:     4096564 kB
SwapFree:      4095388 kB
Dirty:             360 kB
Writeback:           0 kB
Mapped:          29392 kB
Slab:            51852 kB
Committed_AS:  7596528 kB
PageTables:       1660 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66652 MiB



End job on node76 on Tue Jan 16 20:55:42 UTC 2007