Trace number 235274

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 3.0? (MO) 104.536 104.68

General information on the benchmark

Nametaillard/
os-taillard-10/os-taillard-10-95-1.xml
MD5SUM3747bcbd4186ed212dd9be6f087c82b4
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 benchmark26.53
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables100
Number of constraints900
Maximum constraint arity2
Maximum domain size558
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/node24/watcher-235274-1168336858 -o ROOT/results/node24/solver-235274-1168336858 -C 1800 -M 900 /tmp/evaluation/235274-1168336858/VALCSP /tmp/evaluation/235274-1168336858/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: 1.00 1.00 1.16 4/78 30106
/proc/meminfo: memFree=1704200/2055920 swapFree=4192812/4192956
[pid=30105] ppid=30103 vsize=3052 CPUtime=0
/proc/30105/stat : 30105 (VALCSP) R 30103 30105 27402 0 -1 4194304 492 0 0 0 0 0 0 0 18 0 1 0 182081104 3125248 470 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 3040837 0 0 4096 0 0 0 0 17 1 0 0
/proc/30105/statm: 763 479 64 8 0 435 0

[startup+0.102552 s]
/proc/loadavg: 1.00 1.00 1.16 4/78 30106
/proc/meminfo: memFree=1704200/2055920 swapFree=4192812/4192956
[pid=30105] ppid=30103 vsize=4636 CPUtime=0.09
/proc/30105/stat : 30105 (VALCSP) R 30103 30105 27402 0 -1 4194304 917 0 0 0 9 0 0 0 18 0 1 0 182081104 4747264 895 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/30105/statm: 1159 895 64 8 0 831 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4636

[startup+0.510594 s]
/proc/loadavg: 1.00 1.00 1.16 4/78 30106
/proc/meminfo: memFree=1704200/2055920 swapFree=4192812/4192956
[pid=30105] ppid=30103 vsize=8464 CPUtime=0.5
/proc/30105/stat : 30105 (VALCSP) R 30103 30105 27402 0 -1 4194304 1865 0 0 0 50 0 0 0 22 0 1 0 182081104 8667136 1843 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530223 0 0 4096 0 0 0 0 17 1 0 0
/proc/30105/statm: 2116 1843 64 8 0 1788 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 8464

[startup+1.33068 s]
/proc/loadavg: 1.00 1.00 1.16 2/78 30106
/proc/meminfo: memFree=1691336/2055920 swapFree=4192812/4192956
[pid=30105] ppid=30103 vsize=16120 CPUtime=1.32
/proc/30105/stat : 30105 (VALCSP) R 30103 30105 27402 0 -1 4194304 3776 0 0 0 131 1 0 0 25 0 1 0 182081104 16506880 3754 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/30105/statm: 4030 3754 64 8 0 3702 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 16120

[startup+2.97386 s]
/proc/loadavg: 1.00 1.00 1.16 2/78 30106
/proc/meminfo: memFree=1680392/2055920 swapFree=4192812/4192956
[pid=30105] ppid=30103 vsize=31960 CPUtime=2.96
/proc/30105/stat : 30105 (VALCSP) R 30103 30105 27402 0 -1 4194304 7741 0 0 0 292 4 0 0 25 0 1 0 182081104 32727040 7719 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 0 0 0
/proc/30105/statm: 7990 7719 64 8 0 7662 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 31960

[startup+6.25121 s]
/proc/loadavg: 1.00 1.00 1.15 2/84 30170
/proc/meminfo: memFree=1649496/2055920 swapFree=4192812/4192956
[pid=30105] ppid=30103 vsize=59812 CPUtime=6.22
/proc/30105/stat : 30105 (VALCSP) R 30103 30105 27402 0 -1 4194304 14702 0 0 0 615 7 0 0 25 0 1 0 182081104 61247488 14680 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530223 0 0 4096 0 0 0 0 17 1 0 0
/proc/30105/statm: 14953 14680 64 8 0 14625 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 59812

[startup+12.7109 s]
/proc/loadavg: 1.00 1.00 1.15 2/84 30178
/proc/meminfo: memFree=1589536/2055920 swapFree=4192812/4192956
[pid=30105] ppid=30103 vsize=117760 CPUtime=12.67
/proc/30105/stat : 30105 (VALCSP) R 30103 30105 27402 0 -1 4194304 29182 0 0 0 1254 13 0 0 25 0 1 0 182081104 120586240 29160 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530249 0 0 4096 0 0 0 0 17 1 0 0
/proc/30105/statm: 29440 29160 64 8 0 29112 0
Current children cumulated CPU time (s) 12.67
Current children cumulated vsize (KiB) 117760

[startup+25.5183 s]
/proc/loadavg: 1.00 1.00 1.15 2/84 30208
/proc/meminfo: memFree=1481624/2055920 swapFree=4192812/4192956
[pid=30105] ppid=30103 vsize=228508 CPUtime=25.45
/proc/30105/stat : 30105 (VALCSP) R 30103 30105 27402 0 -1 4194304 56889 0 0 0 2520 25 0 0 25 0 1 0 182081104 233992192 56867 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/30105/statm: 57127 56867 64 8 0 56799 0
Current children cumulated CPU time (s) 25.45
Current children cumulated vsize (KiB) 228508

[startup+51.1391 s]
/proc/loadavg: 1.00 1.00 1.15 2/84 30250
/proc/meminfo: memFree=1253336/2055920 swapFree=4192812/4192956
[pid=30105] ppid=30103 vsize=453568 CPUtime=51.04
/proc/30105/stat : 30105 (VALCSP) R 30103 30105 27402 0 -1 4194304 113126 0 0 0 5056 48 0 0 25 0 1 0 182081104 464453632 113104 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/30105/statm: 113392 113104 64 8 0 113064 0
Current children cumulated CPU time (s) 51.04
Current children cumulated vsize (KiB) 453568

[startup+102.379 s]
/proc/loadavg: 1.00 1.00 1.14 2/78 30304
/proc/meminfo: memFree=809744/2055920 swapFree=4192812/4192956
[pid=30105] ppid=30103 vsize=902632 CPUtime=102.23
/proc/30105/stat : 30105 (VALCSP) R 30103 30105 27402 0 -1 4194304 225391 0 0 0 10128 95 0 0 25 0 1 0 182081104 924295168 225369 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/30105/statm: 225658 225369 64 8 0 225330 0
Current children cumulated CPU time (s) 102.23
Current children cumulated vsize (KiB) 902632



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+104.53 s]
/proc/loadavg: 1.00 1.00 1.14 2/78 30304
/proc/meminfo: memFree=781976/2055920 swapFree=4192812/4192956
[pid=30105] ppid=30103 vsize=921772 CPUtime=104.39
/proc/30105/stat : 30105 (VALCSP) R 30103 30105 27402 0 -1 4194304 230179 0 0 0 10342 97 0 0 25 0 1 0 182081104 943894528 230157 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530236 0 0 4096 0 0 0 0 17 1 0 0
/proc/30105/statm: 230443 230157 64 8 0 230115 0
Current children cumulated CPU time (s) 104.39
Current children cumulated vsize (KiB) 921772

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 104.68
CPU time (s): 104.536
CPU user time (s): 103.421
CPU system time (s): 1.11483
CPU usage (%): 99.8629
Max. virtual memory (cumulated for all children) (KiB): 921772

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 103.421
system time used= 1.11483
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230179
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= 6
involuntary context switches= 2400

runsolver used 0.098984 s user time and 0.281957 s system time

The end



Launcher Data (download as text)




Begin job on node24 on Tue Jan  9 10:00:58 UTC 2007


IDJOB= 235274
IDBENCH= 6755
FILE ID= node24/235274-1168336858

PBS_JOBID= 3503337

Free space on /tmp= 66478 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-10/os-taillard-10-95-1.xml
COMMAND LINE= /tmp/evaluation/235274-1168336858/VALCSP /tmp/evaluation/235274-1168336858/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node24/watcher-235274-1168336858 -o ROOT/results/node24/solver-235274-1168336858 -C 1800 -M 900  /tmp/evaluation/235274-1168336858/VALCSP /tmp/evaluation/235274-1168336858/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  3747bcbd4186ed212dd9be6f087c82b4

RANDOM SEED= 282725501

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		: 3000.234
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		: 3000.234
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:       1704616 kB
Buffers:         22936 kB
Cached:         225944 kB
SwapCached:          0 kB
Active:         147312 kB
Inactive:       154548 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1704616 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:             204 kB
Writeback:           0 kB
Mapped:          72028 kB
Slab:            34676 kB
Committed_AS:  3907660 kB
PageTables:       1984 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= 66478 MiB



End job on node24 on Tue Jan  9 10:02:43 UTC 2007