Trace number 233011

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) 202.289 203.841

General information on the benchmark

Nametaillard/
os-taillard-20/os-taillard-20-95-5.xml
MD5SUMceab7fa83218c14d58ea9b242c597630
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 variables400
Number of constraints7600
Maximum constraint arity2
Maximum domain size1189
Number of constraints which are defined in extension0
Number of constraints which are defined in intension7600
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/node18/watcher-233011-1168324400 -o ROOT/results/node18/solver-233011-1168324400 -C 1800 -M 900 /tmp/evaluation/233011-1168324400/VALCSP /tmp/evaluation/233011-1168324400/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: 1.90 1.69 1.79 5/86 27188
/proc/meminfo: memFree=1115792/2055920 swapFree=4192812/4192956
[pid=27187] ppid=27185 vsize=18540 CPUtime=0
/proc/27187/stat : 27187 (runsolver) R 27185 27187 27061 0 -1 4194368 16 0 0 0 0 0 0 0 19 0 1 0 180834816 18984960 279 18446744073709551615 4194304 4267372 548682069072 18446744073709551615 227846158058 0 0 4096 24578 0 0 0 17 1 0 0
/proc/27187/statm: 4635 279 244 17 0 2626 0

[startup+0.108381 s]
/proc/loadavg: 1.90 1.69 1.79 5/86 27188
/proc/meminfo: memFree=1115792/2055920 swapFree=4192812/4192956
[pid=27187] ppid=27185 vsize=19636 CPUtime=0.09
/proc/27187/stat : 27187 (VALCSP) R 27185 27187 27061 0 -1 4194304 4625 0 0 0 8 1 0 0 20 0 1 0 180834816 20107264 4603 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530293 0 0 4096 0 0 0 0 17 1 0 0
/proc/27187/statm: 4909 4603 65 8 0 4581 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 19636

[startup+0.516417 s]
/proc/loadavg: 1.90 1.69 1.79 5/86 27188
/proc/meminfo: memFree=1115792/2055920 swapFree=4192812/4192956
[pid=27187] ppid=27185 vsize=19636 CPUtime=0.5
/proc/27187/stat : 27187 (VALCSP) R 27185 27187 27061 0 -1 4194304 4625 0 0 0 49 1 0 0 24 0 1 0 180834816 20107264 4603 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/27187/statm: 4909 4603 65 8 0 4581 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 19636

[startup+1.3375 s]
/proc/loadavg: 1.90 1.69 1.79 3/86 27188
/proc/meminfo: memFree=1091280/2055920 swapFree=4192812/4192956
[pid=27187] ppid=27185 vsize=24784 CPUtime=1.31
/proc/27187/stat : 27187 (VALCSP) R 27185 27187 27061 0 -1 4194304 5890 0 0 0 129 2 0 0 25 0 1 0 180834816 25378816 5868 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/27187/statm: 6196 5868 65 8 0 5868 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 24784

[startup+2.97966 s]
/proc/loadavg: 1.90 1.69 1.79 3/86 27188
/proc/meminfo: memFree=1079632/2055920 swapFree=4192812/4192956
[pid=27187] ppid=27185 vsize=29800 CPUtime=2.95
/proc/27187/stat : 27187 (VALCSP) R 27185 27187 27061 0 -1 4194304 7155 0 0 0 292 3 0 0 25 0 1 0 180834816 30515200 7133 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/27187/statm: 7450 7133 65 8 0 7122 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 29800

[startup+6.25797 s]
/proc/loadavg: 1.91 1.70 1.79 3/86 27188
/proc/meminfo: memFree=1051408/2055920 swapFree=4192812/4192956
[pid=27187] ppid=27185 vsize=45604 CPUtime=6.19
/proc/27187/stat : 27187 (VALCSP) R 27185 27187 27061 0 -1 4194304 11119 0 0 0 615 4 0 0 25 0 1 0 180834816 46698496 11097 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/27187/statm: 11401 11097 65 8 0 11073 0
Current children cumulated CPU time (s) 6.19
Current children cumulated vsize (KiB) 45604

[startup+12.7206 s]
/proc/loadavg: 1.92 1.70 1.80 3/86 27188
/proc/meminfo: memFree=988304/2055920 swapFree=4192812/4192956
[pid=27187] ppid=27185 vsize=71828 CPUtime=12.61
/proc/27187/stat : 27187 (VALCSP) R 27185 27187 27061 0 -1 4194304 17653 0 0 0 1254 7 0 0 25 0 1 0 180834816 73551872 17631 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/27187/statm: 17957 17631 65 8 0 17629 0
Current children cumulated CPU time (s) 12.61
Current children cumulated vsize (KiB) 71828

[startup+25.5298 s]
/proc/loadavg: 1.93 1.71 1.80 3/86 27188
/proc/meminfo: memFree=884944/2055920 swapFree=4192812/4192956
[pid=27187] ppid=27185 vsize=123764 CPUtime=25.32
/proc/27187/stat : 27187 (VALCSP) R 27185 27187 27061 0 -1 4194304 30648 0 0 0 2520 12 0 0 25 0 1 0 180834816 126734336 30626 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530193 0 0 4096 0 0 0 0 17 1 0 0
/proc/27187/statm: 30941 30626 65 8 0 30613 0
Current children cumulated CPU time (s) 25.32
Current children cumulated vsize (KiB) 123764

[startup+51.1593 s]
/proc/loadavg: 2.02 1.75 1.81 3/86 27188
/proc/meminfo: memFree=666320/2055920 swapFree=4192812/4192956
[pid=27187] ppid=27185 vsize=235548 CPUtime=50.73
/proc/27187/stat : 27187 (VALCSP) R 27185 27187 27061 0 -1 4194304 58608 0 0 0 5050 23 0 0 25 0 1 0 180834816 241201152 58586 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530957 0 0 4096 0 0 0 0 17 1 0 0
/proc/27187/statm: 58887 58586 65 8 0 58559 0
Current children cumulated CPU time (s) 50.73
Current children cumulated vsize (KiB) 235548

[startup+102.413 s]
/proc/loadavg: 2.01 1.79 1.82 3/86 27188
/proc/meminfo: memFree=227408/2055920 swapFree=4192812/4192956
[pid=27187] ppid=27185 vsize=462916 CPUtime=101.57
/proc/27187/stat : 27187 (VALCSP) R 27185 27187 27061 0 -1 4194304 115446 0 0 0 10112 45 0 0 25 0 1 0 180834816 474025984 115424 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/27187/statm: 115729 115424 65 8 0 115401 0
Current children cumulated CPU time (s) 101.57
Current children cumulated vsize (KiB) 462916

[startup+162.519 s]
/proc/loadavg: 2.18 1.87 1.84 3/94 27262
/proc/meminfo: memFree=453128/2055920 swapFree=4192812/4192956
[pid=27187] ppid=27185 vsize=732304 CPUtime=161.31
/proc/27187/stat : 27187 (VALCSP) R 27185 27187 27061 0 -1 4194304 182772 0 0 0 16050 81 0 0 25 0 1 0 180834816 749879296 182750 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 0 0 0
/proc/27187/statm: 183076 182750 65 8 0 182748 0
Current children cumulated CPU time (s) 161.31
Current children cumulated vsize (KiB) 732304



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+203.697 s]
/proc/loadavg: 2.53 2.00 1.88 4/94 27262
/proc/meminfo: memFree=124168/2055920 swapFree=4192812/4192956
[pid=27187] ppid=27185 vsize=925252 CPUtime=202.14
/proc/27187/stat : 27187 (VALCSP) R 27185 27187 27061 0 -1 4194304 231012 0 0 0 20109 105 0 0 25 0 1 0 180834816 947458048 230990 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 0 0 0
/proc/27187/statm: 231313 230990 65 8 0 230985 0
Current children cumulated CPU time (s) 202.14
Current children cumulated vsize (KiB) 925252

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 203.841
CPU time (s): 202.289
CPU user time (s): 201.097
CPU system time (s): 1.19182
CPU usage (%): 99.2389
Max. virtual memory (cumulated for all children) (KiB): 925252

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 201.097
system time used= 1.19182
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 231012
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= 5
involuntary context switches= 6535

runsolver used 0.189971 s user time and 0.605907 s system time

The end



Launcher Data (download as text)




Begin job on node18 on Tue Jan  9 06:33:21 UTC 2007


IDJOB= 233011
IDBENCH= 6577
FILE ID= node18/233011-1168324400

PBS_JOBID= 3502745

Free space on /tmp= 66551 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-20/os-taillard-20-95-5.xml
COMMAND LINE= /tmp/evaluation/233011-1168324400/VALCSP /tmp/evaluation/233011-1168324400/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node18/watcher-233011-1168324400 -o ROOT/results/node18/solver-233011-1168324400 -C 1800 -M 900  /tmp/evaluation/233011-1168324400/VALCSP /tmp/evaluation/233011-1168324400/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  ceab7fa83218c14d58ea9b242c597630

RANDOM SEED= 213549704

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		: 3000.231
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		: 3000.231
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:       1116400 kB
Buffers:         75120 kB
Cached:         350900 kB
SwapCached:          0 kB
Active:         512768 kB
Inactive:       364324 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1116400 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1256 kB
Writeback:           0 kB
Mapped:         470944 kB
Slab:            46644 kB
Committed_AS:  5869264 kB
PageTables:       2788 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= 66548 MiB



End job on node18 on Tue Jan  9 06:36:45 UTC 2007