Trace number 2687720

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 3.19151 3.1926

General information on the benchmark

Name/OPT-SMALLINT-LIN/oliveras/
j30opt/normalized-j304_5.std.opb
MD5SUM23f2db50a4e48af9f9ad997f220b826f
Bench CategoryOPT-SMALLINT-LIN (optimisation, small integers, linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark59
Best CPU time to get the best result obtained on this benchmark3.53846
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 constraints59692
Number of constraints which are clauses58492
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 constraint13
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
0.59/0.63	c constraints 900/0 clauses 58617/0 units 681
0.59/0.63	c vars 18662
0.59/0.63	c objective 300 + 0
2.29/2.35	c 2.14367 181.082 0 0
3.09/3.18	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-2687720-1278455203/watcher-2687720-1278455203 -o /tmp/evaluation-result-2687720-1278455203/solver-2687720-1278455203 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2687720-1278455203.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: 0.99 1.00 1.00 3/106 21154
/proc/meminfo: memFree=1846944/2059040 swapFree=4147384/4192956
[pid=21154] ppid=21152 vsize=2208 CPUtime=0
/proc/21154/stat : 21154 (pbct) R 21152 21154 20338 0 -1 4202496 262 0 0 0 0 0 0 0 20 0 1 0 13733848 2260992 184 1992294400 134512640 136485738 4291264784 18446744073709551615 134532845 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/21154/statm: 552 184 156 482 0 68 0

[startup+0.043989 s]
/proc/loadavg: 0.99 1.00 1.00 3/106 21154
/proc/meminfo: memFree=1846944/2059040 swapFree=4147384/4192956
[pid=21154] ppid=21152 vsize=2340 CPUtime=0.04
/proc/21154/stat : 21154 (pbct) R 21152 21154 20338 0 -1 4202496 297 0 0 0 4 0 0 0 20 0 1 0 13733848 2396160 219 1992294400 134512640 136485738 4291264784 18446744073709551615 135844759 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/21154/statm: 585 219 156 482 0 101 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 2340

[startup+0.100999 s]
/proc/loadavg: 0.99 1.00 1.00 3/106 21154
/proc/meminfo: memFree=1846944/2059040 swapFree=4147384/4192956
[pid=21154] ppid=21152 vsize=2604 CPUtime=0.1
/proc/21154/stat : 21154 (pbct) R 21152 21154 20338 0 -1 4202496 352 0 0 0 10 0 0 0 20 0 1 0 13733848 2666496 274 1992294400 134512640 136485738 4291264784 18446744073709551615 134534437 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/21154/statm: 651 274 157 482 0 167 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2604

[startup+0.301037 s]
/proc/loadavg: 0.99 1.00 1.00 3/106 21154
/proc/meminfo: memFree=1846944/2059040 swapFree=4147384/4192956
[pid=21154] ppid=21152 vsize=3264 CPUtime=0.29
/proc/21154/stat : 21154 (pbct) R 21152 21154 20338 0 -1 4202496 542 0 0 0 29 0 0 0 20 0 1 0 13733848 3342336 464 1992294400 134512640 136485738 4291264784 18446744073709551615 135857072 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/21154/statm: 816 464 157 482 0 332 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3264

[startup+0.701116 s]
/proc/loadavg: 0.99 1.00 1.00 3/106 21154
/proc/meminfo: memFree=1846944/2059040 swapFree=4147384/4192956
[pid=21154] ppid=21152 vsize=14096 CPUtime=0.69
/proc/21154/stat : 21154 (pbct) R 21152 21154 20338 0 -1 4202496 3255 0 0 0 67 2 0 0 21 0 1 0 13733848 14434304 3144 1992294400 134512640 136485738 4291264784 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21154/statm: 3524 3146 194 482 0 3040 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14096

[startup+1.50127 s]
/proc/loadavg: 0.99 1.00 1.00 2/107 21155
/proc/meminfo: memFree=1802668/2059040 swapFree=4147384/4192956
[pid=21154] ppid=21152 vsize=92764 CPUtime=1.49
/proc/21154/stat : 21154 (pbct) R 21152 21154 20338 0 -1 4202496 24219 0 0 0 137 12 0 0 23 0 1 0 13733848 94990336 22501 1992294400 134512640 136485738 4291264784 18446744073709551615 135350462 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21154/statm: 23191 22504 198 482 0 22707 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 92764

[startup+3.10159 s]
/proc/loadavg: 0.99 1.00 1.00 2/107 21155
/proc/meminfo: memFree=1673584/2059040 swapFree=4147384/4192956
[pid=21154] ppid=21152 vsize=160564 CPUtime=3.09
/proc/21154/stat : 21154 (pbct) R 21152 21154 20338 0 -1 4202496 48147 0 0 0 288 21 0 0 25 0 1 0 13733848 164417536 39860 1992294400 134512640 136485738 4291264784 18446744073709551615 135839925 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21154/statm: 40141 39860 233 482 0 39657 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 160564

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

Child status: 0
Real time (s): 3.1926
CPU time (s): 3.19151
CPU user time (s): 2.96355
CPU system time (s): 0.227965
CPU usage (%): 99.966
Max. virtual memory (cumulated for all children) (KiB): 185676

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.96355
system time used= 0.227965
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 48149
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= 41

runsolver used 0.007998 second user time and 0.026995 second system time

The end

Launcher Data 

Begin job on node006 at 2010-07-07 00:26:43
IDJOB=2687720
IDBENCH=78461
IDSOLVER=1170
FILE ID=node006/2687720-1278455203
PBS_JOBID= 11233505
Free space on /tmp= 62580 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB10/normalized-PB10/OPT-SMALLINT-LIN/oliveras/j30opt/normalized-j304_5.std.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2687720-1278455203/watcher-2687720-1278455203 -o /tmp/evaluation-result-2687720-1278455203/solver-2687720-1278455203 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2687720-1278455203.opb

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

MD5SUM BENCH= 23f2db50a4e48af9f9ad997f220b826f
RANDOM SEED=653779586

node006.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		: 3000.269
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		: 3000.269
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:       1847472 kB
Buffers:         11388 kB
Cached:         109192 kB
SwapCached:       3268 kB
Active:          30460 kB
Inactive:       109328 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1847472 kB
SwapTotal:     4192956 kB
SwapFree:      4147384 kB
Dirty:            3596 kB
Writeback:           0 kB
AnonPages:       16932 kB
Mapped:          11992 kB
Slab:            49724 kB
PageTables:       4128 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180300 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= 62576 MiB
End job on node006 at 2010-07-07 00:26:46