Trace number 2687655

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 4.69229 4.69313

General information on the benchmark

Name/OPT-SMALLINT-LIN/oliveras/j30opt/
normalized-j3028_8.std.opb
MD5SUM69750aae6f534e78741c11e4e4e750a8
Bench CategoryOPT-SMALLINT-LIN (optimisation, small integers, linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark53
Best CPU time to get the best result obtained on this benchmark4.6173
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 constraints62642
Number of constraints which are clauses61442
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 constraint25
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
0.69/0.70	c constraints 1200/0 clauses 61247/0 units 2191
0.69/0.70	c vars 18662
0.69/0.70	c objective 300 + 0
3.49/3.52	c 3.2615 239.93 0 0
4.59/4.68	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-2687655-1278454942/watcher-2687655-1278454942 -o /tmp/evaluation-result-2687655-1278454942/solver-2687655-1278454942 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2687655-1278454942.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: 1.24 1.06 1.02 3/106 22500
/proc/meminfo: memFree=1836840/2059040 swapFree=4165008/4192956
[pid=22500] ppid=22498 vsize=2208 CPUtime=0
/proc/22500/stat : 22500 (pbct) R 22498 22500 21970 0 -1 4202496 263 0 0 0 0 0 0 0 20 0 1 0 13697500 2260992 185 1992294400 134512640 136485738 4286608320 18446744073709551615 135688657 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22500/statm: 552 185 156 482 0 68 0

[startup+0.0905821 s]
/proc/loadavg: 1.24 1.06 1.02 3/106 22500
/proc/meminfo: memFree=1836840/2059040 swapFree=4165008/4192956
[pid=22500] ppid=22498 vsize=2604 CPUtime=0.08
/proc/22500/stat : 22500 (pbct) R 22498 22500 21970 0 -1 4202496 344 0 0 0 8 0 0 0 20 0 1 0 13697500 2666496 266 1992294400 134512640 136485738 4286608320 18446744073709551615 135177427 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22500/statm: 651 266 157 482 0 167 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 2604

[startup+0.101583 s]
/proc/loadavg: 1.24 1.06 1.02 3/106 22500
/proc/meminfo: memFree=1836840/2059040 swapFree=4165008/4192956
[pid=22500] ppid=22498 vsize=2604 CPUtime=0.1
/proc/22500/stat : 22500 (pbct) R 22498 22500 21970 0 -1 4202496 354 0 0 0 10 0 0 0 20 0 1 0 13697500 2666496 277 1992294400 134512640 136485738 4286608320 18446744073709551615 134547807 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22500/statm: 651 277 157 482 0 167 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2604

[startup+0.301611 s]
/proc/loadavg: 1.24 1.06 1.02 3/106 22500
/proc/meminfo: memFree=1836840/2059040 swapFree=4165008/4192956
[pid=22500] ppid=22498 vsize=3524 CPUtime=0.29
/proc/22500/stat : 22500 (pbct) R 22498 22500 21970 0 -1 4202496 583 0 0 0 29 0 0 0 20 0 1 0 13697500 3608576 472 1992294400 134512640 136485738 4286608320 18446744073709551615 135411185 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22500/statm: 881 472 157 482 0 397 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3524

[startup+0.701669 s]
/proc/loadavg: 1.24 1.06 1.02 3/106 22500
/proc/meminfo: memFree=1836840/2059040 swapFree=4165008/4192956
[pid=22500] ppid=22498 vsize=6428 CPUtime=0.69
/proc/22500/stat : 22500 (pbct) R 22498 22500 21970 0 -1 4202496 1362 0 0 0 69 0 0 0 20 0 1 0 13697500 6582272 1251 1992294400 134512640 136485738 4286608320 18446744073709551615 135856817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22500/statm: 1607 1251 157 482 0 1123 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6428

[startup+1.50178 s]
/proc/loadavg: 1.24 1.06 1.02 2/107 22501
/proc/meminfo: memFree=1796284/2059040 swapFree=4165008/4192956
[pid=22500] ppid=22498 vsize=90908 CPUtime=1.49
/proc/22500/stat : 22500 (pbct) R 22498 22500 21970 0 -1 4202496 23526 0 0 0 139 10 0 0 22 0 1 0 13697500 93089792 22060 1992294400 134512640 136485738 4286608320 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22500/statm: 22727 22061 194 482 0 22243 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 90908

[startup+3.10101 s]
/proc/loadavg: 1.24 1.06 1.02 2/107 22501
/proc/meminfo: memFree=1717544/2059040 swapFree=4165008/4192956
[pid=22500] ppid=22498 vsize=239804 CPUtime=3.09
/proc/22500/stat : 22500 (pbct) R 22498 22500 21970 0 -1 4202496 62914 0 0 0 283 26 0 0 25 0 1 0 13697500 245559296 58189 1992294400 134512640 136485738 4286608320 18446744073709551615 135848188 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22500/statm: 59951 58189 210 482 0 59467 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 239804

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

[startup+3.90012 s]
/proc/loadavg: 1.24 1.06 1.02 2/107 22501
/proc/meminfo: memFree=1602348/2059040 swapFree=4165008/4192956
[pid=22500] ppid=22498 vsize=230336 CPUtime=3.89
/proc/22500/stat : 22500 (pbct) R 22498 22500 21970 0 -1 4202496 64597 0 0 0 363 26 0 0 25 0 1 0 13697500 235864064 56162 1992294400 134512640 136485738 4286608320 18446744073709551615 134720130 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22500/statm: 57584 56162 232 482 0 57100 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 230336

[startup+4.30018 s]
/proc/loadavg: 1.22 1.06 1.01 2/107 22501
/proc/meminfo: memFree=1611648/2059040 swapFree=4165008/4192956
[pid=22500] ppid=22498 vsize=230336 CPUtime=4.3
/proc/22500/stat : 22500 (pbct) R 22498 22500 21970 0 -1 4202496 64597 0 0 0 404 26 0 0 25 0 1 0 13697500 235864064 56162 1992294400 134512640 136485738 4286608320 18446744073709551615 135839911 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22500/statm: 57584 56162 232 482 0 57100 0
Current children cumulated CPU time (s) 4.3
Current children cumulated vsize (KiB) 230336

[startup+4.50021 s]
/proc/loadavg: 1.22 1.06 1.01 2/107 22501
/proc/meminfo: memFree=1611648/2059040 swapFree=4165008/4192956
[pid=22500] ppid=22498 vsize=227624 CPUtime=4.49
/proc/22500/stat : 22500 (pbct) R 22498 22500 21970 0 -1 4202496 64597 0 0 0 423 26 0 0 25 0 1 0 13697500 233086976 55518 1992294400 134512640 136485738 4286608320 18446744073709551615 135856849 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22500/statm: 56906 55518 232 482 0 56422 0
Current children cumulated CPU time (s) 4.49
Current children cumulated vsize (KiB) 227624

[startup+4.60022 s]
/proc/loadavg: 1.22 1.06 1.01 2/107 22501
/proc/meminfo: memFree=1611648/2059040 swapFree=4165008/4192956
[pid=22500] ppid=22498 vsize=214436 CPUtime=4.59
/proc/22500/stat : 22500 (pbct) R 22498 22500 21970 0 -1 4202496 64598 0 0 0 433 26 0 0 25 0 1 0 13697500 219582464 53325 1992294400 134512640 136485738 4286608320 18446744073709551615 135839991 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22500/statm: 53609 53325 233 482 0 53125 0
Current children cumulated CPU time (s) 4.59
Current children cumulated vsize (KiB) 214436

Child status: 0
Real time (s): 4.69313
CPU time (s): 4.69229
CPU user time (s): 4.40033
CPU system time (s): 0.291955
CPU usage (%): 99.9821
Max. virtual memory (cumulated for all children) (KiB): 245936

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.40033
system time used= 0.291955
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 64600
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= 2
involuntary context switches= 16

runsolver used 0.011998 second user time and 0.028995 second system time

The end

Launcher Data 

Begin job on node049 at 2010-07-07 00:22:22
IDJOB=2687655
IDBENCH=78235
IDSOLVER=1170
FILE ID=node049/2687655-1278454942
PBS_JOBID= 11233535
Free space on /tmp= 62480 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB10/normalized-PB10/OPT-SMALLINT-LIN/oliveras/j30opt/normalized-j3028_8.std.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2687655-1278454942/watcher-2687655-1278454942 -o /tmp/evaluation-result-2687655-1278454942/solver-2687655-1278454942 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2687655-1278454942.opb

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

MD5SUM BENCH= 69750aae6f534e78741c11e4e4e750a8
RANDOM SEED=1999051843

node049.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		: 3000.266
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	: 6000.53
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		: 3000.266
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:       1837368 kB
Buffers:         12964 kB
Cached:         100196 kB
SwapCached:       4900 kB
Active:          75008 kB
Inactive:        76224 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1837368 kB
SwapTotal:     4192956 kB
SwapFree:      4165008 kB
Dirty:            4068 kB
Writeback:           0 kB
AnonPages:       32984 kB
Mapped:          14460 kB
Slab:            48224 kB
PageTables:       4100 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182700 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= 62480 MiB
End job on node049 at 2010-07-07 00:22:27