Trace number 268637

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 3.1Wrong Cert. 0.12798 0.130036

DiagnosticValue
CHECKS1322730
NODES360

General information on the benchmark

Namerlfap/rlfapScensMod/
scen7-w1-f4.xml
MD5SUMe07a2a69f2be09b595434211aefadc5f
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 benchmark0.280956
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables400
Number of constraints660
Maximum constraint arity2
Maximum domain size40
Number of constraints which are defined in extension0
Number of constraints which are defined in intension660
Global constraints used (with number of constraints)

Solver Data (download as text)

0.12	s SATISFIABLE
0.12	v 16 254 86 324 324 86 652 414 722 484 254 16 652 414 456 694 254 16 16 16 16 16 16 254 414 652 414 652 254 16 16 254 16 16 16 254 652 414 394 156 456 694 16 16 16 16 652 414 722 484 16 16 16 16 16 16 484 722 254 16 16 254 16 254 254 16 86 16 16 16 694 456 296 58 442 680 694 456 16 16 16 16 16 254 414 652 456 694 652 414 16 254 86 324 128 366 30 268 100 16 16 16 16 16 16 16 16 16 44 282 16 254 86 16 16 254 484 722 16 16 254 16 156 394 470 708 30 268 100 16 16 254 254 16 324 86 16 254 16 86 254 16 652 414 254 16 128 366 352 114 30 268 114 352 100 338 268 30 428 666 268 30 666 428 268 30 470 708 30 268 310 72 680 442 16 254 30 268 352 114 268 30 16 16 484 722 456 694 498 736 428 666 428 666 428 666 666 428 254 16 498 736 30 268 428 666 666 428 30 268 708 470 16 16 268 30 666 428 268 30 680 442 268 30 428 666 666 428 414 652 694 456 470 708 30 268 16 254 16 254 16 16 30 268 268 30 498 736 442 680 30 268 428 666 666 428 30 268 428 666 428 666 268 30 30 268 666 428 44 282 268 30 44 282 428 666 268 30 428 666 86 324 708 470 268 30 268 30 310 72 254 16 86 324 484 722 652 414 16 16 16 254 254 16 254 16 254 16 456 694 156 394 254 16 296 58 652 414 16 254 470 708 456 694 666 428 484 722 30 268 100 338 268 30 30 268 16 254 16 16 442 680 72 310 16 254 268 30 16 254 428 666 428 666 30 268 428 666 30 268 680 442 268 30 666 428 428 666 484 722 16 16 254 16 428 666 30 268 428 666 666 428 268 30 30 268 114 352 666 428 268 30 100 338 268 30 16 254 16 16 
0.12	d CHECKS 1.32273e+06
0.12	d NODES 360

Verifier Data (download as text)

ERROR: constraint C53 is unsatisfied
Predicate is 
(abs((parm[0]-parm[1]))==parm[2])
parm[0]=16
parm[1]=16
parm[2]=238

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node55/watcher-268637-1168979675 -o ROOT/results/node55/solver-268637-1168979675 -C 1800 -M 900 /tmp/evaluation/268637-1168979675/VALCSP /tmp/evaluation/268637-1168979675/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: 0.85 1.07 1.16 2/65 8774
/proc/meminfo: memFree=1497568/2055920 swapFree=4192192/4192956
[pid=8773] ppid=8771 vsize=3448 CPUtime=0
/proc/8773/stat : 8773 (VALCSP) R 8771 8773 8213 0 -1 4194304 604 0 0 0 0 0 0 0 18 0 1 0 246366216 3530752 582 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 7284347 0 0 4096 0 0 0 0 17 1 0 0
/proc/8773/statm: 862 584 64 8 0 534 0

[startup+0.102538 s]
/proc/loadavg: 0.85 1.07 1.16 2/65 8774
/proc/meminfo: memFree=1497568/2055920 swapFree=4192192/4192956
[pid=8773] ppid=8771 vsize=7540 CPUtime=0.09
/proc/8773/stat : 8773 (VALCSP) R 8771 8773 8213 0 -1 4194304 1636 0 0 0 9 0 0 0 18 0 1 0 246366216 7720960 1614 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 7284347 0 0 4096 0 0 0 0 17 1 0 0
/proc/8773/statm: 1885 1614 64 8 0 1557 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7540

Child status: 0
Real time (s): 0.130036
CPU time (s): 0.12798
CPU user time (s): 0.114982
CPU system time (s): 0.012998
CPU usage (%): 98.4189
Max. virtual memory (cumulated for all children) (KiB): 7540

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.114982
system time used= 0.012998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1952
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= 8
involuntary context switches= 0

runsolver used 0.002999 s user time and 0.004999 s system time

The end

Launcher Data (download as text)

Begin job on node55 on Tue Jan 16 20:34:36 UTC 2007


IDJOB= 268637
IDBENCH= 5096
IDSOLVER= 90
FILE ID= node55/268637-1168979675

PBS_JOBID= 3566144

Free space on /tmp= 66565 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/rlfap/rlfapScensMod/scen7-w1-f4.xml
COMMAND LINE= /tmp/evaluation/268637-1168979675/VALCSP /tmp/evaluation/268637-1168979675/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node55/watcher-268637-1168979675 -o ROOT/results/node55/solver-268637-1168979675 -C 1800 -M 900  /tmp/evaluation/268637-1168979675/VALCSP /tmp/evaluation/268637-1168979675/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  e07a2a69f2be09b595434211aefadc5f

RANDOM SEED= 288508782

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		: 3000.218
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	: 5931.00
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		: 3000.218
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:       1498112 kB
Buffers:         49764 kB
Cached:         415564 kB
SwapCached:        268 kB
Active:         146976 kB
Inactive:       333312 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1498112 kB
SwapTotal:     4192956 kB
SwapFree:      4192192 kB
Dirty:             264 kB
Writeback:           0 kB
Mapped:          23888 kB
Slab:            63648 kB
Committed_AS:  4975388 kB
PageTables:       1380 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= 66565 MiB



End job on node55 on Tue Jan 16 20:34:40 UTC 2007