Trace number 2081823

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 0.3.2UNSAT 7.11092 7.15038

DiagnosticValue
ASSIGNMENTS274

General information on the benchmark

Namecsp/rlfapScensMod/
normalized-scen2-f25.xml
MD5SUM29f30a9e4b2c45ffcc25df1b295772ff
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 benchmark0.45393
Satisfiable
(Un)Satisfiability was proved
Number of variables200
Number of constraints1235
Maximum constraint arity2
Maximum domain size21
Number of constraints which are defined in extension0
Number of constraints which are defined in intension1235
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 524735538
0.18/0.21	c Constructing HOME/instance-2081823-1247720539.xml  with 3605 constraints
0.18/0.21	c Solving 274 backtracks 5 restarts
7.04/7.14	s UNSATISFIABLE
7.04/7.14	d ASSIGNMENTS 274

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2081823-1247720539/watcher-2081823-1247720539 -o /tmp/evaluation-result-2081823-1247720539/solver-2081823-1247720539 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 524735538 HOME/instance-2081823-1247720539.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: 1.94 2.12 2.09 4/72 17773
/proc/meminfo: memFree=867448/2055920 swapFree=4192812/4192956
[pid=17773] ppid=17771 vsize=5356 CPUtime=0
/proc/17773/stat : 17773 (pcssolve) R 17771 17773 16386 0 -1 4194304 273 0 0 0 0 0 0 0 22 0 1 0 59118106 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 213116316319 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/17773/statm: 1339 241 200 169 0 50 0
[pid=17774] ppid=17773 vsize=5356 CPUtime=0
/proc/17774/stat : 17774 (pcssolve) R 17773 17773 16386 0 -1 4194368 0 0 0 0 0 0 0 0 22 0 1 0 59118107 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 213116316319 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/17774/statm: 1339 241 200 169 0 50 0

[startup+0.138185 s]
/proc/loadavg: 1.94 2.12 2.09 4/72 17773
/proc/meminfo: memFree=867448/2055920 swapFree=4192812/4192956
[pid=17773] ppid=17771 vsize=6204 CPUtime=0.11
/proc/17773/stat : 17773 (pcs.big) R 17771 17773 16386 0 -1 4194304 1203 662 0 0 11 0 0 0 18 0 1 0 59118106 6352896 834 996147200 134512640 135215973 4294956304 18446744073709551615 134585409 0 0 4096 0 0 0 0 17 1 0 0
/proc/17773/statm: 1551 834 401 171 0 476 0
Current children cumulated CPU time (s) 0.11
Current children cumulated vsize (KiB) 6204

[startup+0.201194 s]
/proc/loadavg: 1.94 2.12 2.09 4/72 17773
/proc/meminfo: memFree=867448/2055920 swapFree=4192812/4192956
[pid=17773] ppid=17771 vsize=6312 CPUtime=0.18
/proc/17773/stat : 17773 (pcs.big) R 17771 17773 16386 0 -1 4194304 1255 662 0 0 18 0 0 0 18 0 1 0 59118106 6463488 886 996147200 134512640 135215973 4294956304 18446744073709551615 134590083 0 0 4096 0 0 0 0 17 1 0 0
/proc/17773/statm: 1578 886 401 171 0 503 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 6312

[startup+0.301212 s]
/proc/loadavg: 1.94 2.12 2.09 4/72 17773
/proc/meminfo: memFree=867448/2055920 swapFree=4192812/4192956
[pid=17773] ppid=17771 vsize=6520 CPUtime=0.28
/proc/17773/stat : 17773 (pcs.big) R 17771 17773 16386 0 -1 4194304 1324 662 0 0 28 0 0 0 19 0 1 0 59118106 6676480 902 996147200 134512640 135215973 4294956304 18446744073709551615 4158960170 0 0 4096 0 0 0 0 17 1 0 0
/proc/17773/statm: 1630 902 401 171 0 555 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 6520

[startup+0.701288 s]
/proc/loadavg: 1.94 2.12 2.09 4/72 17773
/proc/meminfo: memFree=867448/2055920 swapFree=4192812/4192956
[pid=17773] ppid=17771 vsize=6652 CPUtime=0.67
/proc/17773/stat : 17773 (pcs.big) R 17771 17773 16386 0 -1 4194304 1379 662 0 0 67 0 0 0 22 0 1 0 59118106 6811648 957 996147200 134512640 135215973 4294956304 18446744073709551615 134590080 0 0 4096 0 0 0 0 17 1 0 0
/proc/17773/statm: 1663 957 404 171 0 588 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 6652

[startup+1.50144 s]
/proc/loadavg: 1.94 2.12 2.09 3/73 17778
/proc/meminfo: memFree=864752/2055920 swapFree=4192812/4192956
[pid=17773] ppid=17771 vsize=6784 CPUtime=1.47
/proc/17773/stat : 17773 (pcs.big) R 17771 17773 16386 0 -1 4194304 1416 662 0 0 147 0 0 0 25 0 1 0 59118106 6946816 994 996147200 134512640 135215973 4294956304 18446744073709551615 134585720 0 0 4096 0 0 0 0 17 1 0 0
/proc/17773/statm: 1696 994 404 171 0 621 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 6784

[startup+3.10174 s]
/proc/loadavg: 1.94 2.12 2.09 3/73 17778
/proc/meminfo: memFree=862640/2055920 swapFree=4192812/4192956
[pid=17773] ppid=17771 vsize=7596 CPUtime=3.06
/proc/17773/stat : 17773 (pcs.big) R 17771 17773 16386 0 -1 4194304 1657 662 0 0 306 0 0 0 25 0 1 0 59118106 7778304 1130 996147200 134512640 135215973 4294956304 18446744073709551615 134591364 0 0 4096 0 0 0 0 17 1 0 0
/proc/17773/statm: 1899 1130 404 171 0 824 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 7596

[startup+6.30135 s]
/proc/loadavg: 1.95 2.12 2.09 3/73 17778
/proc/meminfo: memFree=860784/2055920 swapFree=4192812/4192956
[pid=17773] ppid=17771 vsize=7848 CPUtime=6.25
/proc/17773/stat : 17773 (pcs.big) R 17771 17773 16386 0 -1 4194304 1711 662 0 0 625 0 0 0 25 0 1 0 59118106 8036352 1184 996147200 134512640 135215973 4294956304 18446744073709551615 134600828 0 0 4096 0 0 0 0 17 1 0 0
/proc/17773/statm: 1962 1184 404 171 0 887 0
Current children cumulated CPU time (s) 6.25
Current children cumulated vsize (KiB) 7848

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

[startup+6.40137 s]
/proc/loadavg: 1.95 2.12 2.09 3/73 17778
/proc/meminfo: memFree=860784/2055920 swapFree=4192812/4192956
[pid=17773] ppid=17771 vsize=7848 CPUtime=6.35
/proc/17773/stat : 17773 (pcs.big) R 17771 17773 16386 0 -1 4194304 1714 662 0 0 635 0 0 0 25 0 1 0 59118106 8036352 1187 996147200 134512640 135215973 4294956304 18446744073709551615 134583434 0 0 4096 0 0 0 0 17 1 0 0
/proc/17773/statm: 1962 1187 404 171 0 887 0
Current children cumulated CPU time (s) 6.35
Current children cumulated vsize (KiB) 7848

[startup+6.80144 s]
/proc/loadavg: 1.95 2.12 2.09 3/73 17778
/proc/meminfo: memFree=859632/2055920 swapFree=4192812/4192956
[pid=17773] ppid=17771 vsize=7980 CPUtime=6.75
/proc/17773/stat : 17773 (pcs.big) R 17771 17773 16386 0 -1 4194304 1752 662 0 0 675 0 0 0 25 0 1 0 59118106 8171520 1225 996147200 134512640 135215973 4294956304 18446744073709551615 4158960148 0 0 4096 0 0 0 0 17 1 0 0
/proc/17773/statm: 1995 1225 404 171 0 920 0
Current children cumulated CPU time (s) 6.75
Current children cumulated vsize (KiB) 7980

[startup+7.00148 s]
/proc/loadavg: 1.95 2.12 2.09 3/73 17778
/proc/meminfo: memFree=859632/2055920 swapFree=4192812/4192956
[pid=17773] ppid=17771 vsize=7980 CPUtime=6.94
/proc/17773/stat : 17773 (pcs.big) R 17771 17773 16386 0 -1 4194304 1759 662 0 0 694 0 0 0 25 0 1 0 59118106 8171520 1232 996147200 134512640 135215973 4294956304 18446744073709551615 134590020 0 0 4096 0 0 0 0 17 1 0 0
/proc/17773/statm: 1995 1232 404 171 0 920 0
Current children cumulated CPU time (s) 6.94
Current children cumulated vsize (KiB) 7980

[startup+7.1015 s]
/proc/loadavg: 1.95 2.12 2.09 3/73 17778
/proc/meminfo: memFree=859632/2055920 swapFree=4192812/4192956
[pid=17773] ppid=17771 vsize=7980 CPUtime=7.04
/proc/17773/stat : 17773 (pcs.big) R 17771 17773 16386 0 -1 4194304 1759 662 0 0 704 0 0 0 25 0 1 0 59118106 8171520 1232 996147200 134512640 135215973 4294956304 18446744073709551615 134585786 0 0 4096 0 0 0 0 17 1 0 0
/proc/17773/statm: 1995 1232 404 171 0 920 0
Current children cumulated CPU time (s) 7.04
Current children cumulated vsize (KiB) 7980

Child status: 0
Real time (s): 7.15038
CPU time (s): 7.11092
CPU user time (s): 7.10092
CPU system time (s): 0.009998
CPU usage (%): 99.4481
Max. virtual memory (cumulated for all children) (KiB): 7980

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.10092
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2423
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= 92

runsolver used 0.010998 second user time and 0.022996 second system time

The end

Launcher Data 

Begin job on node37 at 2009-07-16 07:02:19
IDJOB=2081823
IDBENCH=57501
IDSOLVER=733
FILE ID=node37/2081823-1247720539
PBS_JOBID= 9521431
Free space on /tmp= 66396 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/rlfapScensMod/normalized-scen2-f25.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2081823-1247720539/watcher-2081823-1247720539 -o /tmp/evaluation-result-2081823-1247720539/solver-2081823-1247720539 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 524735538 HOME/instance-2081823-1247720539.xml

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

MD5SUM BENCH= 29f30a9e4b2c45ffcc25df1b295772ff
RANDOM SEED=524735538

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:        867928 kB
Buffers:         72336 kB
Cached:         255560 kB
SwapCached:          0 kB
Active:         793560 kB
Inactive:       308892 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        867928 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2084 kB
Writeback:           0 kB
Mapped:         786108 kB
Slab:            69348 kB
Committed_AS:  1359592 kB
PageTables:       3420 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 07:02:27