Trace number 2683586

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 1.55776 1.55781

General information on the benchmark

Name/OPT-SMALLINT-LIN/leberre/opb-paranoid/misc2010/random/
rand.biglist/normalized-randa491d5.cudf.paranoid.opb
MD5SUMaec7e1601818e8078cd384d1709eb08b
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 benchmark0.267958
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables6525
Total number of constraints28432
Number of constraints which are clauses28125
Number of constraints which are cardinality constraints (but not clauses)307
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 2437
Biggest coefficient in the objective function 1888
Number of bits for the biggest coefficient in the objective function 11
Sum of the numbers in the objective function 1042174
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 1888
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 1042174
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
0.39/0.47	c constraints 307/0 clauses 22000/0 units 400
0.39/0.47	c vars 6525
0.39/0.47	c objective 2313 + 1989
1.10/1.20	c 1.11683 78.3086 12 2677
1.49/1.55	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-2683586-1277510797/watcher-2683586-1277510797 -o /tmp/evaluation-result-2683586-1277510797/solver-2683586-1277510797 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2683586-1277510797.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: 1.07 1.02 1.00 3/106 26996
/proc/meminfo: memFree=1762872/2059040 swapFree=4136400/4192956
[pid=26996] ppid=26994 vsize=2488 CPUtime=0
/proc/26996/stat : 26996 (pbct) R 26994 26996 26201 0 -1 4202496 308 0 0 0 0 0 0 0 20 0 1 0 124735070 2547712 231 1992294400 134512640 136485738 4292660144 18446744073709551615 135332318 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26996/statm: 622 231 156 482 0 138 0

[startup+0.10646 s]
/proc/loadavg: 1.07 1.02 1.00 3/106 26996
/proc/meminfo: memFree=1762872/2059040 swapFree=4136400/4192956
[pid=26996] ppid=26994 vsize=2616 CPUtime=0.1
/proc/26996/stat : 26996 (pbct) R 26994 26996 26201 0 -1 4202496 366 0 0 0 10 0 0 0 20 0 1 0 124735070 2678784 289 1992294400 134512640 136485738 4292660144 18446744073709551615 135857093 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26996/statm: 654 289 157 482 0 170 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2616

[startup+0.201468 s]
/proc/loadavg: 1.07 1.02 1.00 3/106 26996
/proc/meminfo: memFree=1762872/2059040 swapFree=4136400/4192956
[pid=26996] ppid=26994 vsize=2924 CPUtime=0.2
/proc/26996/stat : 26996 (pbct) R 26994 26996 26201 0 -1 4202496 437 0 0 0 20 0 0 0 20 0 1 0 124735070 2994176 360 1992294400 134512640 136485738 4292660144 18446744073709551615 135180795 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26996/statm: 731 360 157 482 0 247 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 2924

[startup+0.301476 s]
/proc/loadavg: 1.07 1.02 1.00 3/106 26996
/proc/meminfo: memFree=1762872/2059040 swapFree=4136400/4192956
[pid=26996] ppid=26994 vsize=3320 CPUtime=0.29
/proc/26996/stat : 26996 (pbct) R 26994 26996 26201 0 -1 4202496 538 0 0 0 29 0 0 0 20 0 1 0 124735070 3399680 461 1992294400 134512640 136485738 4292660144 18446744073709551615 135416605 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/26996/statm: 830 461 157 482 0 346 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3320

[startup+0.701508 s]
/proc/loadavg: 1.07 1.02 1.00 3/106 26996
/proc/meminfo: memFree=1762872/2059040 swapFree=4136400/4192956
[pid=26996] ppid=26994 vsize=26296 CPUtime=0.7
/proc/26996/stat : 26996 (pbct) R 26994 26996 26201 0 -1 4202496 6405 0 0 0 67 3 0 0 20 0 1 0 124735070 26927104 6176 1992294400 134512640 136485738 4292660144 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26996/statm: 6574 6177 194 482 0 6090 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 26296

[startup+1.50157 s]
/proc/loadavg: 1.07 1.02 1.00 2/107 26997
/proc/meminfo: memFree=1690076/2059040 swapFree=4136400/4192956
[pid=26996] ppid=26994 vsize=75124 CPUtime=1.49
/proc/26996/stat : 26996 (pbct) R 26994 26996 26201 0 -1 4202496 20516 0 0 0 141 8 0 0 22 0 1 0 124735070 76926976 17958 1992294400 134512640 136485738 4292660144 18446744073709551615 135856849 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26996/statm: 18781 17958 247 482 0 18297 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 75124

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

[startup+1.50157 s]
/proc/loadavg: 1.07 1.02 1.00 2/107 26997
/proc/meminfo: memFree=1690076/2059040 swapFree=4136400/4192956
[pid=26996] ppid=26994 vsize=75124 CPUtime=1.49
/proc/26996/stat : 26996 (pbct) R 26994 26996 26201 0 -1 4202496 20516 0 0 0 141 8 0 0 22 0 1 0 124735070 76926976 17958 1992294400 134512640 136485738 4292660144 18446744073709551615 135856849 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26996/statm: 18781 17958 247 482 0 18297 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 75124

Child status: 0
Real time (s): 1.55781
CPU time (s): 1.55776
CPU user time (s): 1.46378
CPU system time (s): 0.093985
CPU usage (%): 99.997
Max. virtual memory (cumulated for all children) (KiB): 79408

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.46378
system time used= 0.093985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 20517
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= 6

runsolver used 0.006998 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node026 at 2010-06-26 02:06:37
IDJOB=2683586
IDBENCH=72123
IDSOLVER=1170
FILE ID=node026/2683586-1277510797
PBS_JOBID= 11190637
Free space on /tmp= 62476 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB10/normalized-PB10/OPT-SMALLINT-LIN/leberre/opb-paranoid/misc2010/random/rand.biglist/normalized-randa491d5.cudf.paranoid.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2683586-1277510797/watcher-2683586-1277510797 -o /tmp/evaluation-result-2683586-1277510797/solver-2683586-1277510797 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2683586-1277510797.opb

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

MD5SUM BENCH= aec7e1601818e8078cd384d1709eb08b
RANDOM SEED=8639941

node026.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:       1763400 kB
Buffers:         55124 kB
Cached:         142404 kB
SwapCached:       9016 kB
Active:          88032 kB
Inactive:       122676 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1763400 kB
SwapTotal:     4192956 kB
SwapFree:      4136400 kB
Dirty:            3184 kB
Writeback:           0 kB
AnonPages:       11812 kB
Mapped:           8316 kB
Slab:            63096 kB
PageTables:       4212 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182404 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= 62476 MiB
End job on node026 at 2010-06-26 02:06:38