Trace number 2684035

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 0.1 fixedUNSAT 0.220965 0.220968

General information on the benchmark

Name/OPT-BIGINT-LIN/leberre/opb-paranoid/misc2010/random/
rand.smallist/normalized-rand6c4744.cudf.paranoid.opb
MD5SUM0abc07b67cc4a7bf034f6170fd84e55e
Bench CategoryOPT-BIGINT-LIN (optimisation, big 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 benchmark0.220965
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables6732
Total number of constraints22279
Number of constraints which are clauses22278
Number of constraints which are cardinality constraints (but not clauses)1
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint1147
Number of terms in the objective function 3177
Biggest coefficient in the objective function 2034
Number of bits for the biggest coefficient in the objective function 11
Sum of the numbers in the objective function 2330962
Number of bits of the sum of numbers in the objective function 22
Biggest number in a constraint 2034
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 2330962
Number of bits of the biggest sum of numbers22
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 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.19/0.22	c constraints 1/0 clauses 22148/0 units 42
0.19/0.22	c vars 6732
0.19/0.22	c objective 3177 + 0
0.19/0.22	c solved in presolving
0.19/0.22	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-2684035-1277511782/watcher-2684035-1277511782 -o /tmp/evaluation-result-2684035-1277511782/solver-2684035-1277511782 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2684035-1277511782.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: 1.13 1.03 1.01 2/106 30696
/proc/meminfo: memFree=1783548/2059040 swapFree=4140520/4192956
[pid=30696] ppid=30694 vsize=2416 CPUtime=0
/proc/30696/stat : 30696 (pbct) R 30694 30696 29802 0 -1 4202496 296 0 0 0 0 0 0 0 20 0 1 0 92469203 2473984 216 1992294400 134512640 136421960 4291330848 18446744073709551615 134541311 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30696/statm: 604 216 137 467 0 135 0

[startup+0.0514851 s]
/proc/loadavg: 1.13 1.03 1.01 2/106 30696
/proc/meminfo: memFree=1783548/2059040 swapFree=4140520/4192956
[pid=30696] ppid=30694 vsize=2552 CPUtime=0.04
/proc/30696/stat : 30696 (pbct) R 30694 30696 29802 0 -1 4202496 335 0 0 0 4 0 0 0 20 0 1 0 92469203 2613248 255 1992294400 134512640 136421960 4291330848 18446744073709551615 134554246 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30696/statm: 638 255 145 467 0 169 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 2552

[startup+0.101491 s]
/proc/loadavg: 1.13 1.03 1.01 2/106 30696
/proc/meminfo: memFree=1783548/2059040 swapFree=4140520/4192956
[pid=30696] ppid=30694 vsize=2728 CPUtime=0.09
/proc/30696/stat : 30696 (pbct) R 30694 30696 29802 0 -1 4202496 383 0 0 0 9 0 0 0 20 0 1 0 92469203 2793472 303 1992294400 134512640 136421960 4291330848 18446744073709551615 135642756 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30696/statm: 682 303 145 467 0 213 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2728

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

[startup+0.201506 s]
/proc/loadavg: 1.13 1.03 1.01 2/106 30696
/proc/meminfo: memFree=1783548/2059040 swapFree=4140520/4192956
[pid=30696] ppid=30694 vsize=3144 CPUtime=0.19
/proc/30696/stat : 30696 (pbct) R 30694 30696 29802 0 -1 4202496 482 0 0 0 19 0 0 0 20 0 1 0 92469203 3219456 402 1992294400 134512640 136421960 4291330848 18446744073709551615 134518851 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30696/statm: 786 402 145 467 0 317 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 3144

Child status: 0
Real time (s): 0.220968
CPU time (s): 0.220965
CPU user time (s): 0.218966
CPU system time (s): 0.001999
CPU usage (%): 99.9986
Max. virtual memory (cumulated for all children) (KiB): 3144

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.218966
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 500
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= 2

runsolver used 0.004999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node052 at 2010-06-26 02:23:02
IDJOB=2684035
IDBENCH=72178
IDSOLVER=1192
FILE ID=node052/2684035-1277511782
PBS_JOBID= 11190596
Free space on /tmp= 62248 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB10/normalized-PB10/OPT-BIGINT-LIN/leberre/opb-paranoid/misc2010/random/rand.smallist/normalized-rand6c4744.cudf.paranoid.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2684035-1277511782/watcher-2684035-1277511782 -o /tmp/evaluation-result-2684035-1277511782/solver-2684035-1277511782 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2684035-1277511782.opb

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

MD5SUM BENCH= 0abc07b67cc4a7bf034f6170fd84e55e
RANDOM SEED=584942955

node052.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		: 3000.262
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	: 6000.52
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		: 3000.262
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:       1784068 kB
Buffers:         51912 kB
Cached:         126048 kB
SwapCached:       5528 kB
Active:          74376 kB
Inactive:       116788 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1784068 kB
SwapTotal:     4192956 kB
SwapFree:      4140520 kB
Dirty:            2900 kB
Writeback:           0 kB
AnonPages:       11772 kB
Mapped:          11940 kB
Slab:            62000 kB
PageTables:       4136 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180704 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= 62248 MiB
End job on node052 at 2010-06-26 02:23:02