Trace number 2684495

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 2.95455 2.95757

General information on the benchmark

Name/DEC-SMALLINT-LIN/oliveras/j30/
normalized-j309_10-unsat.opb
MD5SUM42dd40b7036ee1d1ca1e1784551c3e09
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 benchmark0.255961
Has Objective FunctionNO
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables5456
Total number of constraints17015
Number of constraints which are clauses16667
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints348
Minimum length of a constraint1
Maximum length of a constraint26
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 16
Number of bits of the biggest number in a constraint 5
Biggest sum of numbers in a constraint 177
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 

0.00/0.01	c PB/CT 0.1 http://www.residual.se/pbct
0.00/0.01	c Based on OpenSMT/CT 20091015
0.09/0.19	c constraints 348/0 clauses 16491/0 units 113
0.09/0.19	c vars 5456
2.59/2.62	c 2.50762 75.1055 470 1520
2.89/2.95	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-2684495-1278432532/watcher-2684495-1278432532 -o /tmp/evaluation-result-2684495-1278432532/solver-2684495-1278432532 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2684495-1278432532.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: 0.00 0.00 0.00 3/106 23310
/proc/meminfo: memFree=1500156/2059040 swapFree=4192956/4192956
[pid=23310] ppid=23308 vsize=2208 CPUtime=0.01
/proc/23310/stat : 23310 (pbct) R 23308 23310 23285 0 -1 4202496 262 0 0 0 1 0 0 0 16 0 1 0 11465645 2260992 185 1992294400 134512640 136485738 4289865936 18446744073709551615 135181230 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23310/statm: 552 185 157 482 0 68 0

[startup+0.0703169 s]
/proc/loadavg: 0.00 0.00 0.00 3/106 23310
/proc/meminfo: memFree=1500156/2059040 swapFree=4192956/4192956
[pid=23310] ppid=23308 vsize=2472 CPUtime=0.06
/proc/23310/stat : 23310 (pbct) R 23308 23310 23285 0 -1 4202496 316 0 0 0 6 0 0 0 16 0 1 0 11465645 2531328 239 1992294400 134512640 136485738 4289865936 18446744073709551615 135178929 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23310/statm: 618 239 157 482 0 134 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 2472

[startup+0.10132 s]
/proc/loadavg: 0.00 0.00 0.00 3/106 23310
/proc/meminfo: memFree=1500156/2059040 swapFree=4192956/4192956
[pid=23310] ppid=23308 vsize=2604 CPUtime=0.09
/proc/23310/stat : 23310 (pbct) R 23308 23310 23285 0 -1 4202496 342 0 0 0 9 0 0 0 16 0 1 0 11465645 2666496 265 1992294400 134512640 136485738 4289865936 18446744073709551615 134532157 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23310/statm: 651 265 157 482 0 167 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2604

[startup+0.30134 s]
/proc/loadavg: 0.00 0.00 0.00 3/106 23310
/proc/meminfo: memFree=1500156/2059040 swapFree=4192956/4192956
[pid=23310] ppid=23308 vsize=16064 CPUtime=0.29
/proc/23310/stat : 23310 (pbct) R 23308 23310 23285 0 -1 4202496 3674 0 0 0 28 1 0 0 17 0 1 0 11465645 16449536 3597 1992294400 134512640 136485738 4289865936 18446744073709551615 135849271 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23310/statm: 4016 3598 191 482 0 3532 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 16064

[startup+0.70138 s]
/proc/loadavg: 0.00 0.00 0.00 3/106 23310
/proc/meminfo: memFree=1500156/2059040 swapFree=4192956/4192956
[pid=23310] ppid=23308 vsize=43268 CPUtime=0.69
/proc/23310/stat : 23310 (pbct) R 23308 23310 23285 0 -1 4202496 10984 0 0 0 65 4 0 0 17 0 1 0 11465645 44306432 10321 1992294400 134512640 136485738 4289865936 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23310/statm: 10850 10322 196 482 0 10366 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 43268

[startup+1.50146 s]
/proc/loadavg: 0.00 0.00 0.00 2/107 23311
/proc/meminfo: memFree=1430460/2059040 swapFree=4192956/4192956
[pid=23310] ppid=23308 vsize=76904 CPUtime=1.48
/proc/23310/stat : 23310 (pbct) R 23308 23310 23285 0 -1 4202496 19578 0 0 0 140 8 0 0 18 0 1 0 11465645 78749696 18011 1992294400 134512640 136485738 4289865936 18446744073709551615 135040410 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23310/statm: 19226 18011 223 482 0 18742 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 76904

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

[startup+2.30154 s]
/proc/loadavg: 0.08 0.02 0.01 2/107 23311
/proc/meminfo: memFree=1428476/2059040 swapFree=4192956/4192956
[pid=23310] ppid=23308 vsize=76904 CPUtime=2.28
/proc/23310/stat : 23310 (pbct) R 23308 23310 23285 0 -1 4202496 19588 0 0 0 218 10 0 0 19 0 1 0 11465645 78749696 18021 1992294400 134512640 136485738 4289865936 18446744073709551615 135024568 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23310/statm: 19226 18021 223 482 0 18742 0
Current children cumulated CPU time (s) 2.28
Current children cumulated vsize (KiB) 76904

[startup+2.70058 s]
/proc/loadavg: 0.08 0.02 0.01 2/107 23311
/proc/meminfo: memFree=1428476/2059040 swapFree=4192956/4192956
[pid=23310] ppid=23308 vsize=71356 CPUtime=2.69
/proc/23310/stat : 23310 (pbct) R 23308 23310 23285 0 -1 4202496 19614 0 0 0 258 11 0 0 20 0 1 0 11465645 73068544 17086 1992294400 134512640 136485738 4289865936 18446744073709551615 134720107 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23310/statm: 17839 17086 245 482 0 17355 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 71356

[startup+2.9006 s]
/proc/loadavg: 0.08 0.02 0.01 2/107 23311
/proc/meminfo: memFree=1428476/2059040 swapFree=4192956/4192956
[pid=23310] ppid=23308 vsize=71356 CPUtime=2.89
/proc/23310/stat : 23310 (pbct) R 23308 23310 23285 0 -1 4202496 19614 0 0 0 278 11 0 0 20 0 1 0 11465645 73068544 17086 1992294400 134512640 136485738 4289865936 18446744073709551615 135856849 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23310/statm: 17839 17086 245 482 0 17355 0
Current children cumulated CPU time (s) 2.89
Current children cumulated vsize (KiB) 71356

Child status: 0
Real time (s): 2.95757
CPU time (s): 2.95455
CPU user time (s): 2.83357
CPU system time (s): 0.120981
CPU usage (%): 99.898
Max. virtual memory (cumulated for all children) (KiB): 76904

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.83357
system time used= 0.120981
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19615
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= 7

runsolver used 0.007998 second user time and 0.024996 second system time

The end

Launcher Data 

Begin job on node017 at 2010-07-06 18:08:52
IDJOB=2684495
IDBENCH=72683
IDSOLVER=1170
FILE ID=node017/2684495-1278432532
PBS_JOBID= 11233455
Free space on /tmp= 62476 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB10/normalized-PB10/DEC-SMALLINT-LIN/oliveras/j30/normalized-j309_10-unsat.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2684495-1278432532/watcher-2684495-1278432532 -o /tmp/evaluation-result-2684495-1278432532/solver-2684495-1278432532 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2684495-1278432532.opb

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

MD5SUM BENCH= 42dd40b7036ee1d1ca1e1784551c3e09
RANDOM SEED=985293338

node017.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		: 3000.220
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	: 6000.44
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		: 3000.220
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:       1501288 kB
Buffers:        102760 kB
Cached:         322644 kB
SwapCached:          0 kB
Active:         164880 kB
Inactive:       320596 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1501288 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            2596 kB
Writeback:           0 kB
AnonPages:       60040 kB
Mapped:          14364 kB
Slab:            50420 kB
PageTables:       4144 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   179412 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= 62472 MiB
End job on node017 at 2010-07-06 18:08:56