Trace number 2683495

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 NameAnswerobjective functionCPU timeWall clock time
PB/CT 0.1UNSAT 1.26481 1.26456

General information on the benchmark

Name/OPT-SMALLINT-LIN/leberre/opb-paranoid/misc2010/random/
rand.newlist/normalized-rand00ebc7.cudf.paranoid.opb
MD5SUMee292f72b38ce56d0daddb0042ed24c1
Bench CategoryOPT-SMALLINT-LIN (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 benchmark0.137978
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables5518
Total number of constraints24887
Number of constraints which are clauses24610
Number of constraints which are cardinality constraints (but not clauses)277
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint553
Number of terms in the objective function 2053
Biggest coefficient in the objective function 1504
Number of bits for the biggest coefficient in the objective function 11
Sum of the numbers in the objective function 830206
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 1504
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 830206
Number of bits of the biggest sum of numbers20
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
0.30/0.32	c constraints 277/0 clauses 22587/0 units 62
0.30/0.32	c vars 5518
0.30/0.32	c objective 2044 + 8
0.89/0.96	c 0.892864 72.4492 0 0
1.19/1.25	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-2683495-1277510149/watcher-2683495-1277510149 -o /tmp/evaluation-result-2683495-1277510149/solver-2683495-1277510149 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2683495-1277510149.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: 0.93 0.98 0.99 3/105 29929
/proc/meminfo: memFree=1819572/2059040 swapFree=4139416/4192956
[pid=29929] ppid=29927 vsize=2488 CPUtime=0
/proc/29929/stat : 29929 (pbct) R 29927 29929 29252 0 -1 4202496 305 0 0 0 0 0 0 0 25 0 1 0 92308998 2547712 227 1992294400 134512640 136485738 4288142352 18446744073709551615 135332318 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29929/statm: 622 227 156 482 0 138 0

[startup+0.0232091 s]
/proc/loadavg: 0.93 0.98 0.99 3/105 29929
/proc/meminfo: memFree=1819572/2059040 swapFree=4139416/4192956
[pid=29929] ppid=29927 vsize=2488 CPUtime=0.02
/proc/29929/stat : 29929 (pbct) R 29927 29929 29252 0 -1 4202496 306 0 0 0 2 0 0 0 25 0 1 0 92308998 2547712 228 1992294400 134512640 136485738 4288142352 18446744073709551615 135856892 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29929/statm: 622 228 157 482 0 138 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2488

[startup+0.101217 s]
/proc/loadavg: 0.93 0.98 0.99 3/105 29929
/proc/meminfo: memFree=1819572/2059040 swapFree=4139416/4192956
[pid=29929] ppid=29927 vsize=2616 CPUtime=0.1
/proc/29929/stat : 29929 (pbct) R 29927 29929 29252 0 -1 4202496 361 0 0 0 10 0 0 0 25 0 1 0 92308998 2678784 283 1992294400 134512640 136485738 4288142352 18446744073709551615 134549372 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29929/statm: 654 283 157 482 0 170 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2616

[startup+0.301238 s]
/proc/loadavg: 0.93 0.98 0.99 3/105 29929
/proc/meminfo: memFree=1819572/2059040 swapFree=4139416/4192956
[pid=29929] ppid=29927 vsize=3444 CPUtime=0.3
/proc/29929/stat : 29929 (pbct) R 29927 29929 29252 0 -1 4202496 543 0 0 0 30 0 0 0 25 0 1 0 92308998 3526656 465 1992294400 134512640 136485738 4288142352 18446744073709551615 134544813 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29929/statm: 861 465 158 482 0 377 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 3444

[startup+0.701281 s]
/proc/loadavg: 0.93 0.98 0.99 3/105 29929
/proc/meminfo: memFree=1819572/2059040 swapFree=4139416/4192956
[pid=29929] ppid=29927 vsize=41688 CPUtime=0.69
/proc/29929/stat : 29929 (pbct) R 29927 29929 29252 0 -1 4202496 10453 0 0 0 65 4 0 0 25 0 1 0 92308998 42688512 9884 1992294400 134512640 136485738 4288142352 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29929/statm: 10422 9886 198 482 0 9938 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 41688

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

[startup+1.10932 s]
/proc/loadavg: 0.93 0.98 0.99 2/106 29932
/proc/meminfo: memFree=1751488/2059040 swapFree=4139416/4192956
[pid=29929] ppid=29927 vsize=67344 CPUtime=1.1
/proc/29929/stat : 29929 (pbct) R 29927 29929 29252 0 -1 4202496 18967 0 0 0 103 7 0 0 25 0 1 0 92308998 68960256 16380 1992294400 134512640 136485738 4288142352 18446744073709551615 135839911 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29929/statm: 16836 16380 232 482 0 16352 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 67344

[startup+1.20133 s]
/proc/loadavg: 0.93 0.98 0.99 2/106 29932
/proc/meminfo: memFree=1751488/2059040 swapFree=4139416/4192956
[pid=29929] ppid=29927 vsize=67344 CPUtime=1.19
/proc/29929/stat : 29929 (pbct) R 29927 29929 29252 0 -1 4202496 18967 0 0 0 112 7 0 0 25 0 1 0 92308998 68960256 16380 1992294400 134512640 136485738 4288142352 18446744073709551615 135839991 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29929/statm: 16836 16380 232 482 0 16352 0
Current children cumulated CPU time (s) 1.19
Current children cumulated vsize (KiB) 67344

Child status: 0
Real time (s): 1.26456
CPU time (s): 1.26481
CPU user time (s): 1.18282
CPU system time (s): 0.081987
CPU usage (%): 100.019
Max. virtual memory (cumulated for all children) (KiB): 73232

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.18282
system time used= 0.081987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 18970
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= 2

runsolver used 0.005999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node081 at 2010-06-26 01:55:49
IDJOB=2683495
IDBENCH=72116
IDSOLVER=1170
FILE ID=node081/2683495-1277510149
PBS_JOBID= 11190612
Free space on /tmp= 121784 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB10/normalized-PB10/OPT-SMALLINT-LIN/leberre/opb-paranoid/misc2010/random/rand.newlist/normalized-rand00ebc7.cudf.paranoid.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2683495-1277510149/watcher-2683495-1277510149 -o /tmp/evaluation-result-2683495-1277510149/solver-2683495-1277510149 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2683495-1277510149.opb

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

MD5SUM BENCH= ee292f72b38ce56d0daddb0042ed24c1
RANDOM SEED=1651660806

node081.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		: 3000.212
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	: 6000.42
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		: 3000.212
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	: 5999.41
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1820100 kB
Buffers:         40176 kB
Cached:         102184 kB
SwapCached:       5932 kB
Active:          77124 kB
Inactive:        77992 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1820100 kB
SwapTotal:     4192956 kB
SwapFree:      4139416 kB
Dirty:            3064 kB
Writeback:           8 kB
AnonPages:       11528 kB
Mapped:          11784 kB
Slab:            62016 kB
PageTables:       4080 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180620 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264964 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 121784 MiB
End job on node081 at 2010-06-26 01:55:50