Trace number 2669038

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? (MO) 33.3749 33.3977

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/liu/
dbst/normalized-dbst_v40_e600_d20_mw10_2.opb.PB06.opb
MD5SUM409a20f37901eec51bb3d0d7a35b01e1
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark0
Best CPU time to get the best result obtained on this benchmark2.81157
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
Number of variables2800
Total number of constraints990001
Number of constraints which are clauses986760
Number of constraints which are cardinality constraints (but not clauses)81
Number of constraints which are nor clauses,nor cardinality constraints3160
Minimum length of a constraint2
Maximum length of a constraint1200
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 368
Number of bits of the biggest number in a constraint 9
Biggest sum of numbers in a constraint 1239
Number of bits of the biggest sum of numbers11
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
15.78/15.86	c constraints 3241/0 clauses 986760/0 units 0
15.78/15.86	c vars 2800
33.18/33.20	s UNKNOWN

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-2669038-1276433555/watcher-2669038-1276433555 -o /tmp/evaluation-result-2669038-1276433555/solver-2669038-1276433555 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2669038-1276433555.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: 0.91 0.95 0.97 3/106 24071
/proc/meminfo: memFree=1565640/2059040 swapFree=4142408/4192956
[pid=24071] ppid=24069 vsize=2208 CPUtime=0
/proc/24071/stat : 24071 (pbct) R 24069 24071 23803 0 -1 4202496 255 0 0 0 0 0 0 0 21 0 1 0 17012044 2260992 177 1992294400 134512640 136485738 4291916528 18446744073709551615 135848200 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24071/statm: 552 177 156 482 0 68 0

[startup+0.078204 s]
/proc/loadavg: 0.91 0.95 0.97 3/106 24071
/proc/meminfo: memFree=1565640/2059040 swapFree=4142408/4192956
[pid=24071] ppid=24069 vsize=2340 CPUtime=0.07
/proc/24071/stat : 24071 (pbct) R 24069 24071 23803 0 -1 4202496 297 0 0 0 7 0 0 0 21 0 1 0 17012044 2396160 219 1992294400 134512640 136485738 4291916528 18446744073709551615 134517396 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24071/statm: 585 219 156 482 0 101 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 2340

[startup+0.101207 s]
/proc/loadavg: 0.91 0.95 0.97 3/106 24071
/proc/meminfo: memFree=1565640/2059040 swapFree=4142408/4192956
[pid=24071] ppid=24069 vsize=2340 CPUtime=0.09
/proc/24071/stat : 24071 (pbct) R 24069 24071 23803 0 -1 4202496 310 0 0 0 9 0 0 0 22 0 1 0 17012044 2396160 232 1992294400 134512640 136485738 4291916528 18446744073709551615 135848129 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24071/statm: 585 232 156 482 0 101 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2340

[startup+0.301244 s]
/proc/loadavg: 0.91 0.95 0.97 3/106 24071
/proc/meminfo: memFree=1565640/2059040 swapFree=4142408/4192956
[pid=24071] ppid=24069 vsize=2868 CPUtime=0.29
/proc/24071/stat : 24071 (pbct) R 24069 24071 23803 0 -1 4202496 424 0 0 0 29 0 0 0 22 0 1 0 17012044 2936832 346 1992294400 134512640 136485738 4291916528 18446744073709551615 135411219 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24071/statm: 717 346 156 482 0 233 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2868

[startup+0.701319 s]
/proc/loadavg: 0.91 0.95 0.97 3/106 24071
/proc/meminfo: memFree=1565640/2059040 swapFree=4142408/4192956
[pid=24071] ppid=24069 vsize=3788 CPUtime=0.69
/proc/24071/stat : 24071 (pbct) R 24069 24071 23803 0 -1 4202496 686 0 0 0 69 0 0 0 24 0 1 0 17012044 3878912 575 1992294400 134512640 136485738 4291916528 18446744073709551615 135567552 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24071/statm: 947 575 156 482 0 463 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3788

[startup+1.50147 s]
/proc/loadavg: 0.91 0.95 0.97 2/107 24072
/proc/meminfo: memFree=1563028/2059040 swapFree=4142408/4192956
[pid=24071] ppid=24069 vsize=5760 CPUtime=1.49
/proc/24071/stat : 24071 (pbct) R 24069 24071 23803 0 -1 4202496 1209 0 0 0 149 0 0 0 25 0 1 0 17012044 5898240 1033 1992294400 134512640 136485738 4291916528 18446744073709551615 135844162 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24071/statm: 1440 1033 156 482 0 956 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5760

[startup+3.10177 s]
/proc/loadavg: 0.91 0.95 0.97 2/107 24072
/proc/meminfo: memFree=1560052/2059040 swapFree=4142408/4192956
[pid=24071] ppid=24069 vsize=9440 CPUtime=3.09
/proc/24071/stat : 24071 (pbct) R 24069 24071 23803 0 -1 4202496 2255 0 0 0 308 1 0 0 25 0 1 0 17012044 9666560 1950 1992294400 134512640 136485738 4291916528 18446744073709551615 134533947 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24071/statm: 2360 1950 156 482 0 1876 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 9440

[startup+6.30136 s]
/proc/loadavg: 1.08 0.99 0.98 2/107 24072
/proc/meminfo: memFree=1552860/2059040 swapFree=4142408/4192956
[pid=24071] ppid=24069 vsize=17064 CPUtime=6.28
/proc/24071/stat : 24071 (pbct) R 24069 24071 23803 0 -1 4202496 4341 0 0 0 626 2 0 0 25 0 1 0 17012044 17473536 3779 1992294400 134512640 136485738 4291916528 18446744073709551615 135411152 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24071/statm: 4266 3779 156 482 0 3782 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 17064

[startup+12.7016 s]
/proc/loadavg: 1.07 0.99 0.98 2/107 24072
/proc/meminfo: memFree=1537856/2059040 swapFree=4142408/4192956
[pid=24071] ppid=24069 vsize=32048 CPUtime=12.69
/proc/24071/stat : 24071 (pbct) R 24069 24071 23803 0 -1 4202496 8503 0 0 0 1263 6 0 0 25 0 1 0 17012044 32817152 7428 1992294400 134512640 136485738 4291916528 18446744073709551615 135756046 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24071/statm: 8012 7428 156 482 0 7528 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 32048

[startup+25.5009 s]
/proc/loadavg: 1.06 0.99 0.98 2/107 24074
/proc/meminfo: memFree=987420/2059040 swapFree=4142408/4192956
[pid=24071] ppid=24069 vsize=624240 CPUtime=25.48
/proc/24071/stat : 24071 (pbct) R 24069 24071 23803 0 -1 4202496 178198 0 0 0 2477 71 0 0 25 0 1 0 17012044 639221760 148332 1992294400 134512640 136485738 4291916528 18446744073709551615 134556977 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24071/statm: 156060 148333 196 482 0 155576 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 624240



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+33.1024 s]
/proc/loadavg: 1.13 1.00 0.99 2/107 24074
/proc/meminfo: memFree=10516/2059040 swapFree=4142408/4192956
[pid=24071] ppid=24069 vsize=1866908 CPUtime=33.18
/proc/24071/stat : 24071 (pbct) R 24069 24071 23803 0 -1 4202496 500011 0 0 0 3118 200 0 0 25 0 1 0 17012044 1911713792 450684 1992294400 134512640 136485738 4291916528 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 0 0 0 0
/proc/24071/statm: 466727 450689 197 482 0 466243 0
Current children cumulated CPU time (s) 33.18
Current children cumulated vsize (KiB) 1866908

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

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

[startup+33.3057 s]
/proc/loadavg: 1.13 1.00 0.99 2/107 24074
/proc/meminfo: memFree=10516/2059040 swapFree=4142408/4192956
[pid=24071] ppid=24069 vsize=0 CPUtime=33.27
/proc/24071/stat : 24071 (pbct) R 24069 24071 23803 0 -1 4194308 500043 0 0 0 3118 209 0 0 25 0 1 0 17012044 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/24071/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 33.27
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 33.3977
CPU time (s): 33.3749
CPU user time (s): 31.1823
CPU system time (s): 2.19267
CPU usage (%): 99.9318
Max. virtual memory (cumulated for all children) (KiB): 1866908

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 31.1823
system time used= 2.19267
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 500043
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= 447

runsolver used 0.05999 second user time and 0.173973 second system time

The end

Launcher Data 

Begin job on node019 at 2010-06-13 14:52:37
IDJOB=2669038
IDBENCH=1384
IDSOLVER=1170
FILE ID=node019/2669038-1276433555
PBS_JOBID= 11173319
Free space on /tmp= 62324 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/liu/dbst/normalized-dbst_v40_e600_d20_mw10_2.opb.PB06.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2669038-1276433555/watcher-2669038-1276433555 -o /tmp/evaluation-result-2669038-1276433555/solver-2669038-1276433555 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2669038-1276433555.opb

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

MD5SUM BENCH= 409a20f37901eec51bb3d0d7a35b01e1
RANDOM SEED=1218434635

node019.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		: 3000.264
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	: 6000.52
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		: 3000.264
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	: 5599.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1566044 kB
Buffers:        104288 kB
Cached:         289428 kB
SwapCached:       5232 kB
Active:         125372 kB
Inactive:       282240 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1566044 kB
SwapTotal:     4192956 kB
SwapFree:      4142408 kB
Dirty:           36132 kB
Writeback:           0 kB
AnonPages:       11476 kB
Mapped:          13692 kB
Slab:            63720 kB
PageTables:       3996 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182128 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= 62320 MiB
End job on node019 at 2010-06-13 14:53:12