Trace number 2683534

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 1.50177 1.50209

General information on the benchmark

Name/OPT-SMALLINT-LIN/leberre/opb-paranoid/misc2010/random/
rand.biglist/normalized-randfe95e3.cudf.paranoid.opb
MD5SUM935dbca81410818c4dfa4090fb07f874
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 benchmark0.171973
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables6249
Total number of constraints27683
Number of constraints which are clauses27359
Number of constraints which are cardinality constraints (but not clauses)324
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 2304
Biggest coefficient in the objective function 1755
Number of bits for the biggest coefficient in the objective function 11
Sum of the numbers in the objective function 968758
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 1755
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 968758
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
0.29/0.39	c constraints 324/0 clauses 25365/0 units 98
0.29/0.39	c vars 6249
0.29/0.39	c objective 2279 + 24
1.09/1.15	c 1.06584 81.8906 0 0
1.39/1.49	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-2683534-1277510430/watcher-2683534-1277510430 -o /tmp/evaluation-result-2683534-1277510430/solver-2683534-1277510430 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2683534-1277510430.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: 0.92 0.98 0.99 3/106 22999
/proc/meminfo: memFree=1807816/2059040 swapFree=4135660/4192956
[pid=22999] ppid=22997 vsize=2488 CPUtime=0
/proc/22999/stat : 22999 (pbct) R 22997 22999 22398 0 -1 4202496 307 0 0 0 0 0 0 0 20 0 1 0 126646990 2547712 230 1992294400 134512640 136485738 4293671248 18446744073709551615 135177471 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22999/statm: 622 230 156 482 0 138 0

[startup+0.0811319 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 22999
/proc/meminfo: memFree=1807816/2059040 swapFree=4135660/4192956
[pid=22999] ppid=22997 vsize=2620 CPUtime=0.07
/proc/22999/stat : 22999 (pbct) R 22997 22999 22398 0 -1 4202496 344 0 0 0 7 0 0 0 20 0 1 0 126646990 2682880 267 1992294400 134512640 136485738 4293671248 18446744073709551615 135567535 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22999/statm: 655 267 157 482 0 171 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 2620

[startup+0.102135 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 22999
/proc/meminfo: memFree=1807816/2059040 swapFree=4135660/4192956
[pid=22999] ppid=22997 vsize=2620 CPUtime=0.09
/proc/22999/stat : 22999 (pbct) R 22997 22999 22398 0 -1 4202496 359 0 0 0 9 0 0 0 20 0 1 0 126646990 2682880 282 1992294400 134512640 136485738 4293671248 18446744073709551615 135856820 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22999/statm: 655 282 157 482 0 171 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2620

[startup+0.30015 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 22999
/proc/meminfo: memFree=1807816/2059040 swapFree=4135660/4192956
[pid=22999] ppid=22997 vsize=3316 CPUtime=0.29
/proc/22999/stat : 22999 (pbct) R 22997 22999 22398 0 -1 4202496 532 0 0 0 29 0 0 0 20 0 1 0 126646990 3395584 455 1992294400 134512640 136485738 4293671248 18446744073709551615 135177498 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22999/statm: 829 455 157 482 0 345 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3316

[startup+0.700183 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 22999
/proc/meminfo: memFree=1807816/2059040 swapFree=4135660/4192956
[pid=22999] ppid=22997 vsize=35164 CPUtime=0.69
/proc/22999/stat : 22999 (pbct) R 22997 22999 22398 0 -1 4202496 8828 0 0 0 66 3 0 0 21 0 1 0 126646990 36007936 8172 1992294400 134512640 136485738 4293671248 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22999/statm: 8791 8173 198 482 0 8307 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 35164

[startup+1.50025 s]
/proc/loadavg: 0.92 0.98 0.99 2/107 23000
/proc/meminfo: memFree=1730804/2059040 swapFree=4135660/4192956
[pid=22999] ppid=22997 vsize=0 CPUtime=1.49
/proc/22999/stat : 22999 (pbct) R 22997 22999 22398 0 -1 4202500 21567 0 0 0 140 9 0 0 23 0 1 0 126646990 0 0 1992294400 0 0 0 0 0 0 0 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/22999/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 0

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

Child status: 0
Real time (s): 1.50209
CPU time (s): 1.50177
CPU user time (s): 1.40179
CPU system time (s): 0.099984
CPU usage (%): 99.9786
Max. virtual memory (cumulated for all children) (KiB): 83004

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.40179
system time used= 0.099984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 21567
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= 22

runsolver used 0.002999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node003 at 2010-06-26 02:00:31
IDJOB=2683534
IDBENCH=72119
IDSOLVER=1170
FILE ID=node003/2683534-1277510430
PBS_JOBID= 11190602
Free space on /tmp= 62392 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB10/normalized-PB10/OPT-SMALLINT-LIN/leberre/opb-paranoid/misc2010/random/rand.biglist/normalized-randfe95e3.cudf.paranoid.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2683534-1277510430/watcher-2683534-1277510430 -o /tmp/evaluation-result-2683534-1277510430/solver-2683534-1277510430 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2683534-1277510430.opb

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

MD5SUM BENCH= 935dbca81410818c4dfa4090fb07f874
RANDOM SEED=1836977948

node003.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		: 3000.251
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	: 6000.50
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		: 3000.251
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	: 5599.45
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1808344 kB
Buffers:         42648 kB
Cached:         108552 kB
SwapCached:       9732 kB
Active:          83396 kB
Inactive:        80876 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1808344 kB
SwapTotal:     4192956 kB
SwapFree:      4135660 kB
Dirty:            2696 kB
Writeback:           0 kB
AnonPages:       11724 kB
Mapped:           8376 kB
Slab:            64472 kB
PageTables:       4052 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182592 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= 62392 MiB
End job on node003 at 2010-06-26 02:00:32