Trace number 2684775

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
PB/CT 0.1UNSAT 8.49735 4.30719

General information on the benchmark

Name/DEC-SMALLINT-LIN/oliveras/j120/
normalized-j12023_3-unsat.opb
MD5SUMcab64fb449176610fb00692a41666b1e
Bench CategoryDEC-SMALLINT-LIN (no optimisation, small integers, linear constraints)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark0.339947
Has Objective FunctionNO
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables23958
Total number of constraints79333
Number of constraints which are clauses78941
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints392
Minimum length of a constraint1
Maximum length of a constraint38
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 22
Number of bits of the biggest number in a constraint 5
Biggest sum of numbers in a constraint 225
Number of bits of the biggest sum of numbers8
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.00	c PB/CT 0.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.79/0.82	c constraints 392/0 clauses 78151/0 units 454
0.79/0.82	c vars 23958
3.09/3.19	c 2.92556 237.031 0 0
4.19/4.29	s UNSATISFIABLE

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2684775-1278433529/watcher-2684775-1278433529 -o /tmp/evaluation-result-2684775-1278433529/solver-2684775-1278433529 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2684775-1278433529.opb 

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): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.03 0.69 3/106 18294
/proc/meminfo: memFree=1470572/2059040 swapFree=4192956/4192956
[pid=18294] ppid=18292 vsize=2208 CPUtime=0
/proc/18294/stat : 18294 (pbct) R 18292 18294 17984 0 -1 4202496 257 0 0 0 0 0 0 0 15 0 1 0 11560432 2260992 180 1992294400 134512640 136485738 4290156032 18446744073709551615 135332318 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/18294/statm: 552 180 157 482 0 68 0

[startup+0.029417 s]
/proc/loadavg: 1.00 1.03 0.69 3/106 18294
/proc/meminfo: memFree=1470572/2059040 swapFree=4192956/4192956
[pid=18294] ppid=18292 vsize=2208 CPUtime=0.02
/proc/18294/stat : 18294 (pbct) R 18292 18294 17984 0 -1 4202496 278 0 0 0 2 0 0 0 17 0 1 0 11560432 2260992 202 1992294400 134512640 136485738 4290156032 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/18294/statm: 552 202 157 482 0 68 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2208

[startup+0.100422 s]
/proc/loadavg: 1.00 1.03 0.69 3/106 18294
/proc/meminfo: memFree=1470572/2059040 swapFree=4192956/4192956
[pid=18294] ppid=18292 vsize=2604 CPUtime=0.09
/proc/18294/stat : 18294 (pbct) R 18292 18294 17984 0 -1 4202496 346 0 0 0 9 0 0 0 17 0 1 0 11560432 2666496 269 1992294400 134512640 136485738 4290156032 18446744073709551615 134550665 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/18294/statm: 651 269 157 482 0 167 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2604

[startup+0.300434 s]
/proc/loadavg: 1.00 1.03 0.69 3/106 18294
/proc/meminfo: memFree=1470572/2059040 swapFree=4192956/4192956
[pid=18294] ppid=18292 vsize=3396 CPUtime=0.29
/proc/18294/stat : 18294 (pbct) R 18292 18294 17984 0 -1 4202496 544 0 0 0 29 0 0 0 17 0 1 0 11560432 3477504 467 1992294400 134512640 136485738 4290156032 18446744073709551615 135562257 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/18294/statm: 849 467 157 482 0 365 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3396

[startup+0.700459 s]
/proc/loadavg: 1.00 1.03 0.69 3/106 18294
/proc/meminfo: memFree=1470572/2059040 swapFree=4192956/4192956
[pid=18294] ppid=18292 vsize=4836 CPUtime=0.69
/proc/18294/stat : 18294 (pbct) R 18292 18294 17984 0 -1 4202496 973 0 0 0 69 0 0 0 17 0 1 0 11560432 4952064 798 1992294400 134512640 136485738 4290156032 18446744073709551615 135856853 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/18294/statm: 1209 798 157 482 0 725 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4836

[startup+1.50051 s]
/proc/loadavg: 1.00 1.03 0.69 2/107 18295
/proc/meminfo: memFree=1443780/2059040 swapFree=4192956/4192956
[pid=18294] ppid=18292 vsize=79320 CPUtime=1.49
/proc/18294/stat : 18294 (pbct) R 18292 18294 17984 0 -1 4202496 20113 0 0 0 139 10 0 0 18 0 1 0 11560432 81223680 18817 1992294400 134512640 136485738 4290156032 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/18294/statm: 19830 18818 191 482 0 19346 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 79320

[startup+3.10061 s]
/proc/loadavg: 1.00 1.03 0.69 2/107 18295
/proc/meminfo: memFree=1346440/2059040 swapFree=4192956/4192956
[pid=18294] ppid=18292 vsize=240904 CPUtime=3.09
/proc/18294/stat : 18294 (pbct) R 18292 18294 17984 0 -1 4202496 62501 0 0 0 283 26 0 0 21 0 1 0 11560432 246685696 58146 1992294400 134512640 136485738 4290156032 18446744073709551615 134941782 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/18294/statm: 60226 58146 208 482 0 59742 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 240904

############
# WARNING:
# current cumulated CPU time (0 s) is less than in the last sample (4.19 s)
# The time of a child was probably not reported to its father.
# (see the two samples below)
# Adding the difference (4.19 s) to the 'lost time'.

[startup+4.20068 s]
/proc/loadavg: 1.00 1.03 0.69 2/107 18295
/proc/meminfo: memFree=1237816/2059040 swapFree=4192956/4192956
[pid=18294] ppid=18292 vsize=212032 CPUtime=4.19
/proc/18294/stat : 18294 (pbct) R 18292 18294 17984 0 -1 4202496 63098 0 0 0 393 26 0 0 25 0 1 0 11560432 217120768 52681 1992294400 134512640 136485738 4290156032 18446744073709551615 135839787 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/18294/statm: 53008 52681 231 482 0 52524 0
Current children cumulated CPU time (s) 4.19
Current children cumulated vsize (KiB) 212032

[startup+4.30068 s]
/proc/loadavg: 1.00 1.03 0.69 2/107 18295
/proc/meminfo: memFree=1398900/2059040 swapFree=4192956/4192956
[pid=18294] ppid=-1 vsize=0 CPUtime=0
/proc/18294/stat : -- couldn't open stat file --/proc/18294/statm: Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0
#
############


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

[startup+3.90066 s]
/proc/loadavg: 1.00 1.03 0.69 2/107 18295
/proc/meminfo: memFree=1237816/2059040 swapFree=4192956/4192956
[pid=18294] ppid=18292 vsize=225704 CPUtime=3.89
/proc/18294/stat : 18294 (pbct) R 18292 18294 17984 0 -1 4202496 63097 0 0 0 363 26 0 0 23 0 1 0 11560432 231120896 54749 1992294400 134512640 136485738 4290156032 18446744073709551615 135839991 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/18294/statm: 56426 54749 230 482 0 55942 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 225704

[startup+4.30068 s]
/proc/loadavg: 1.00 1.03 0.69 2/107 18295
/proc/meminfo: memFree=1398900/2059040 swapFree=4192956/4192956
[pid=18294] ppid=-1 vsize=0 CPUtime=0
/proc/18294/stat : -- couldn't open stat file --/proc/18294/statm: Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0

Child status: 0

# WARNING:
# The CPU time of some children was not reported to their father
# (probably because of a missing or aborted wait()).
# This 'lost CPU time' is added to the watched process CPU time.
#  lost CPU time (s): 4.19
#  lost CPU user time (s): 3.93
#  lost CPU system time (s): 0.26

Real time (s): 4.30719
CPU time (s): 8.49735
CPU user time (s): 7.94839
CPU system time (s): 0.548956
CPU usage (%): 197.283
Max. virtual memory (cumulated for all children) (KiB): 241352

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.01839
system time used= 0.288956
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 63100
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= 1
involuntary context switches= 8

runsolver used 0.008998 second user time and 0.031995 second system time

The end

Launcher Data 

Begin job on node039 at 2010-07-06 18:25:29
IDJOB=2684775
IDBENCH=73560
IDSOLVER=1170
FILE ID=node039/2684775-1278433529
PBS_JOBID= 11233443
Free space on /tmp= 62528 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB10/normalized-PB10/DEC-SMALLINT-LIN/oliveras/j120/normalized-j12023_3-unsat.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2684775-1278433529/watcher-2684775-1278433529 -o /tmp/evaluation-result-2684775-1278433529/solver-2684775-1278433529 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2684775-1278433529.opb

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

MD5SUM BENCH= cab64fb449176610fb00692a41666b1e
RANDOM SEED=1935299439

node039.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/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		: 3000.242
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.48
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		: 3000.242
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1471100 kB
Buffers:        104288 kB
Cached:         352104 kB
SwapCached:          0 kB
Active:         194268 kB
Inactive:       322040 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1471100 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            4168 kB
Writeback:           0 kB
AnonPages:       59916 kB
Mapped:          14404 kB
Slab:            49800 kB
PageTables:       4148 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180472 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62524 MiB
End job on node039 at 2010-07-06 18:25:33