Trace number 2684835

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 0.1 fixedUNSAT 0.922859 0.923814

General information on the benchmark

Name/DEC-SMALLINT-LIN/oliveras/j120/
normalized-j12015_3-unsat.opb
MD5SUMfb0fc5066c2899699e0ea4a2b024975c
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 benchmark0.31995
Has Objective FunctionNO
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables21054
Total number of constraints66352
Number of constraints which are clauses66008
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints344
Minimum length of a constraint1
Maximum length of a constraint93
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 46
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 599
Number of bits of the biggest sum of numbers10
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 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.89/0.92	c constraints 344/0 clauses 60606/0 units 3387
0.89/0.92	c vars 21054
0.89/0.92	c solved in presolving
0.89/0.92	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-2684835-1278434939/watcher-2684835-1278434939 -o /tmp/evaluation-result-2684835-1278434939/solver-2684835-1278434939 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2684835-1278434939.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: 0.95 0.99 0.89 3/106 19132
/proc/meminfo: memFree=1800532/2059040 swapFree=4192956/4192956
[pid=19132] ppid=19130 vsize=2136 CPUtime=0
/proc/19132/stat : 19132 (pbct) R 19130 19132 18454 0 -1 4202496 247 0 0 0 0 0 0 0 18 0 1 0 11701529 2187264 166 1992294400 134512640 136421960 4291071648 18446744073709551615 135820837 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/19132/statm: 534 166 144 467 0 65 0

[startup+0.022088 s]
/proc/loadavg: 0.95 0.99 0.89 3/106 19132
/proc/meminfo: memFree=1800532/2059040 swapFree=4192956/4192956
[pid=19132] ppid=19130 vsize=2136 CPUtime=0.02
/proc/19132/stat : 19132 (pbct) R 19130 19132 18454 0 -1 4202496 262 0 0 0 2 0 0 0 18 0 1 0 11701529 2187264 181 1992294400 134512640 136421960 4291071648 18446744073709551615 135818454 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/19132/statm: 534 181 144 467 0 65 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2136

[startup+0.101096 s]
/proc/loadavg: 0.95 0.99 0.89 3/106 19132
/proc/meminfo: memFree=1800532/2059040 swapFree=4192956/4192956
[pid=19132] ppid=19130 vsize=2532 CPUtime=0.09
/proc/19132/stat : 19132 (pbct) R 19130 19132 18454 0 -1 4202496 344 0 0 0 9 0 0 0 20 0 1 0 11701529 2592768 263 1992294400 134512640 136421960 4291071648 18446744073709551615 135380591 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/19132/statm: 633 263 144 467 0 164 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2532

[startup+0.301119 s]
/proc/loadavg: 0.95 0.99 0.89 3/106 19132
/proc/meminfo: memFree=1800532/2059040 swapFree=4192956/4192956
[pid=19132] ppid=19130 vsize=3452 CPUtime=0.29
/proc/19132/stat : 19132 (pbct) R 19130 19132 18454 0 -1 4202496 581 0 0 0 29 0 0 0 20 0 1 0 11701529 3534848 467 1992294400 134512640 136421960 4291071648 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/19132/statm: 863 467 144 467 0 394 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3452

[startup+0.701162 s]
/proc/loadavg: 0.95 0.99 0.89 3/106 19132
/proc/meminfo: memFree=1800532/2059040 swapFree=4192956/4192956
[pid=19132] ppid=19130 vsize=6884 CPUtime=0.69
/proc/19132/stat : 19132 (pbct) R 19130 19132 18454 0 -1 4202496 1461 0 0 0 69 0 0 0 21 0 1 0 11701529 7049216 1347 1992294400 134512640 136421960 4291071648 18446744073709551615 135829965 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/19132/statm: 1721 1347 145 467 0 1252 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6884

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

[startup+0.901183 s]
/proc/loadavg: 0.95 0.99 0.89 3/106 19132
/proc/meminfo: memFree=1800532/2059040 swapFree=4192956/4192956
[pid=19132] ppid=19130 vsize=6884 CPUtime=0.89
/proc/19132/stat : 19132 (pbct) R 19130 19132 18454 0 -1 4202496 1464 0 0 0 89 0 0 0 21 0 1 0 11701529 7049216 1350 1992294400 134512640 136421960 4291071648 18446744073709551615 135829965 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/19132/statm: 1721 1350 145 467 0 1252 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 6884

Child status: 0
Real time (s): 0.923814
CPU time (s): 0.922859
CPU user time (s): 0.913861
CPU system time (s): 0.008998
CPU usage (%): 99.8966
Max. virtual memory (cumulated for all children) (KiB): 6884

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.913861
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1471
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= 15

runsolver used 0.006998 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node038 at 2010-07-06 18:48:59
IDJOB=2684835
IDBENCH=73651
IDSOLVER=1192
FILE ID=node038/2684835-1278434939
PBS_JOBID= 11233444
Free space on /tmp= 62536 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB10/normalized-PB10/DEC-SMALLINT-LIN/oliveras/j120/normalized-j12015_3-unsat.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2684835-1278434939/watcher-2684835-1278434939 -o /tmp/evaluation-result-2684835-1278434939/solver-2684835-1278434939 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2684835-1278434939.opb

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

MD5SUM BENCH= fb0fc5066c2899699e0ea4a2b024975c
RANDOM SEED=815456043

node038.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		: 3000.215
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	: 6000.43
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		: 3000.215
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	: 5599.45
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1801060 kB
Buffers:         10184 kB
Cached:         113888 kB
SwapCached:          0 kB
Active:          53632 kB
Inactive:       130452 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1801060 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            4336 kB
Writeback:           0 kB
AnonPages:       59984 kB
Mapped:          14376 kB
Slab:            52068 kB
PageTables:       4168 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   179668 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= 62536 MiB
End job on node038 at 2010-07-06 18:49:00