Trace number 2687616

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 0.1Wrong UNSAT 4.17736 4.17766

General information on the benchmark

Name/OPT-SMALLINT-LIN/oliveras/j30opt/
normalized-j3039_5.std.opb
MD5SUM97e7b70c04a3779c4b6f89337c12e2f2
Bench CategoryOPT-SMALLINT-LIN (optimisation, small integers, linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark55
Best CPU time to get the best result obtained on this benchmark3.53546
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables18662
Total number of constraints65663
Number of constraints which are clauses64463
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints1200
Minimum length of a constraint1
Maximum length of a constraint20
Number of terms in the objective function 300
Biggest coefficient in the objective function 300
Number of bits for the biggest coefficient in the objective function 9
Sum of the numbers in the objective function 45150
Number of bits of the sum of numbers in the objective function 16
Biggest number in a constraint 300
Number of bits of the biggest number in a constraint 9
Biggest sum of numbers in a constraint 45150
Number of bits of the biggest sum of numbers16
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
0.69/0.71	c constraints 1200/0 clauses 64248/0 units 1296
0.69/0.71	c vars 18662
0.69/0.71	c objective 300 + 0
3.10/3.12	c 2.87656 221.266 0 0
4.09/4.16	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-2687616-1278454747/watcher-2687616-1278454747 -o /tmp/evaluation-result-2687616-1278454747/solver-2687616-1278454747 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2687616-1278454747.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 1.00 1.00 3/106 25204
/proc/meminfo: memFree=1834644/2059040 swapFree=4139164/4192956
[pid=25204] ppid=25202 vsize=2208 CPUtime=0
/proc/25204/stat : 25204 (pbct) R 25202 25204 24557 0 -1 4202496 262 0 0 0 0 0 0 0 18 0 1 0 13688399 2260992 185 1992294400 134512640 136485738 4289140400 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25204/statm: 552 185 156 482 0 68 0

[startup+0.022271 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 25204
/proc/meminfo: memFree=1834644/2059040 swapFree=4139164/4192956
[pid=25204] ppid=25202 vsize=2208 CPUtime=0.02
/proc/25204/stat : 25204 (pbct) R 25202 25204 24557 0 -1 4202496 277 0 0 0 2 0 0 0 20 0 1 0 13688399 2260992 200 1992294400 134512640 136485738 4289140400 18446744073709551615 135180888 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25204/statm: 552 200 156 482 0 68 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2208

[startup+0.10128 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 25204
/proc/meminfo: memFree=1834644/2059040 swapFree=4139164/4192956
[pid=25204] ppid=25202 vsize=2604 CPUtime=0.1
/proc/25204/stat : 25204 (pbct) R 25202 25204 24557 0 -1 4202496 353 0 0 0 10 0 0 0 20 0 1 0 13688399 2666496 276 1992294400 134512640 136485738 4289140400 18446744073709551615 135844759 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25204/statm: 651 276 157 482 0 167 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2604

[startup+0.3013 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 25204
/proc/meminfo: memFree=1834644/2059040 swapFree=4139164/4192956
[pid=25204] ppid=25202 vsize=3396 CPUtime=0.3
/proc/25204/stat : 25204 (pbct) R 25202 25204 24557 0 -1 4202496 546 0 0 0 30 0 0 0 20 0 1 0 13688399 3477504 469 1992294400 134512640 136485738 4289140400 18446744073709551615 134534411 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25204/statm: 849 469 157 482 0 365 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 3396

[startup+0.701341 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 25204
/proc/meminfo: memFree=1834644/2059040 swapFree=4139164/4192956
[pid=25204] ppid=25202 vsize=5768 CPUtime=0.69
/proc/25204/stat : 25204 (pbct) R 25202 25204 24557 0 -1 4202496 1181 0 0 0 69 0 0 0 20 0 1 0 13688399 5906432 1071 1992294400 134512640 136485738 4289140400 18446744073709551615 135411158 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/25204/statm: 1442 1071 157 482 0 958 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5768

[startup+1.50142 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 25205
/proc/meminfo: memFree=1794460/2059040 swapFree=4139164/4192956
[pid=25204] ppid=25202 vsize=91036 CPUtime=1.49
/proc/25204/stat : 25204 (pbct) R 25202 25204 24557 0 -1 4202496 23558 0 0 0 140 9 0 0 23 0 1 0 13688399 93220864 22048 1992294400 134512640 136485738 4289140400 18446744073709551615 134651003 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25204/statm: 22759 22048 194 482 0 22275 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 91036

[startup+3.10159 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 25205
/proc/meminfo: memFree=1714976/2059040 swapFree=4139164/4192956
[pid=25204] ppid=25202 vsize=227088 CPUtime=3.1
/proc/25204/stat : 25204 (pbct) R 25202 25204 24557 0 -1 4202496 59457 0 0 0 285 25 0 0 25 0 1 0 13688399 232538112 54510 1992294400 134512640 136485738 4289140400 18446744073709551615 135848324 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25204/statm: 56772 54510 210 482 0 56288 0
Current children cumulated CPU time (s) 3.1
Current children cumulated vsize (KiB) 227088

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

[startup+3.90067 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 25205
/proc/meminfo: memFree=1622348/2059040 swapFree=4139164/4192956
[pid=25204] ppid=25202 vsize=209308 CPUtime=3.89
/proc/25204/stat : 25204 (pbct) R 25202 25204 24557 0 -1 4202496 59495 0 0 0 364 25 0 0 25 0 1 0 13688399 214331392 50922 1992294400 134512640 136485738 4289140400 18446744073709551615 135839991 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25204/statm: 52327 50922 232 482 0 51843 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 209308

[startup+4.10069 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 25205
/proc/meminfo: memFree=1622348/2059040 swapFree=4139164/4192956
[pid=25204] ppid=25202 vsize=196932 CPUtime=4.09
/proc/25204/stat : 25204 (pbct) R 25202 25204 24557 0 -1 4202496 59496 0 0 0 384 25 0 0 25 0 1 0 13688399 201658368 48953 1992294400 134512640 136485738 4289140400 18446744073709551615 135839796 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/25204/statm: 49233 48953 233 482 0 48749 0
Current children cumulated CPU time (s) 4.09
Current children cumulated vsize (KiB) 196932

Child status: 0
Real time (s): 4.17766
CPU time (s): 4.17736
CPU user time (s): 3.90141
CPU system time (s): 0.275958
CPU usage (%): 99.9929
Max. virtual memory (cumulated for all children) (KiB): 227088

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.90141
system time used= 0.275958
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 59498
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= 9

runsolver used 0.010998 second user time and 0.021996 second system time

The end

Launcher Data 

Begin job on node002 at 2010-07-07 00:19:07
IDJOB=2687616
IDBENCH=78136
IDSOLVER=1170
FILE ID=node002/2687616-1278454747
PBS_JOBID= 11233519
Free space on /tmp= 62564 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB10/normalized-PB10/OPT-SMALLINT-LIN/oliveras/j30opt/normalized-j3039_5.std.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2687616-1278454747/watcher-2687616-1278454747 -o /tmp/evaluation-result-2687616-1278454747/solver-2687616-1278454747 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2687616-1278454747.opb

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

MD5SUM BENCH= 97e7b70c04a3779c4b6f89337c12e2f2
RANDOM SEED=1023163330

node002.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		: 3000.201
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	: 6000.40
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		: 3000.201
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	: 5599.46
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1835164 kB
Buffers:          9704 kB
Cached:         120820 kB
SwapCached:       7412 kB
Active:         109368 kB
Inactive:        36268 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1835164 kB
SwapTotal:     4192956 kB
SwapFree:      4139164 kB
Dirty:            5088 kB
Writeback:           4 kB
AnonPages:       12444 kB
Mapped:          11840 kB
Slab:            56292 kB
PageTables:       4116 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   179608 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= 62564 MiB
End job on node002 at 2010-07-07 00:19:11