Trace number 2683667

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 0.337948 0.338291

General information on the benchmark

Name/OPT-SMALLINT-LIN/leberre/opb-paranoid/misc2010/random/
rand.biglist/normalized-rand199fd6.cudf.paranoid.opb
MD5SUMed6439846d599590769e7881fb6d3c5e
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 benchmark0.178972
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables6600
Total number of constraints29501
Number of constraints which are clauses29152
Number of constraints which are cardinality constraints (but not clauses)349
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 2426
Biggest coefficient in the objective function 1877
Number of bits for the biggest coefficient in the objective function 11
Sum of the numbers in the objective function 1036102
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 1877
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 1036102
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 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.29/0.33	c constraints 349/0 clauses 28943/0 units 33
0.29/0.33	c vars 6600
0.29/0.33	c objective 2426 + 0
0.29/0.33	c solved in presolving
0.29/0.33	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-2683667-1277511228/watcher-2683667-1277511228 -o /tmp/evaluation-result-2683667-1277511228/solver-2683667-1277511228 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2683667-1277511228.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: 2.10 1.91 1.42 3/106 30924
/proc/meminfo: memFree=1807560/2059040 swapFree=4139448/4192956
[pid=30924] ppid=30922 vsize=2416 CPUtime=0
/proc/30924/stat : 30924 (pbct) R 30922 30924 30415 0 -1 4202496 300 0 0 0 0 0 0 0 18 0 1 0 92415278 2473984 219 1992294400 134512640 136421960 4289344240 18446744073709551615 135873694 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30924/statm: 604 219 145 467 0 135 0

[startup+0.0604431 s]
/proc/loadavg: 2.10 1.91 1.42 3/106 30924
/proc/meminfo: memFree=1807560/2059040 swapFree=4139448/4192956
[pid=30924] ppid=30922 vsize=2416 CPUtime=0.05
/proc/30924/stat : 30924 (pbct) R 30922 30924 30415 0 -1 4202496 327 0 0 0 5 0 0 0 20 0 1 0 92415278 2473984 246 1992294400 134512640 136421960 4289344240 18446744073709551615 135818501 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30924/statm: 604 246 145 467 0 135 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 2416

[startup+0.100447 s]
/proc/loadavg: 2.10 1.91 1.42 3/106 30924
/proc/meminfo: memFree=1807560/2059040 swapFree=4139448/4192956
[pid=30924] ppid=30922 vsize=2544 CPUtime=0.09
/proc/30924/stat : 30924 (pbct) R 30922 30924 30415 0 -1 4202496 359 0 0 0 9 0 0 0 20 0 1 0 92415278 2605056 278 1992294400 134512640 136421960 4289344240 18446744073709551615 134524125 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30924/statm: 636 278 145 467 0 167 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2544

[startup+0.300469 s]
/proc/loadavg: 2.10 1.91 1.42 3/106 30924
/proc/meminfo: memFree=1807560/2059040 swapFree=4139448/4192956
[pid=30924] ppid=30922 vsize=3380 CPUtime=0.29
/proc/30924/stat : 30924 (pbct) R 30922 30924 30415 0 -1 4202496 559 0 0 0 29 0 0 0 20 0 1 0 92415278 3461120 478 1992294400 134512640 136421960 4289344240 18446744073709551615 135154704 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30924/statm: 845 478 145 467 0 376 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3380

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

Child status: 0
Real time (s): 0.338291
CPU time (s): 0.337948
CPU user time (s): 0.333949
CPU system time (s): 0.003999
CPU usage (%): 99.8986
Max. virtual memory (cumulated for all children) (KiB): 3380

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.333949
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 596
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= 1

runsolver used 0.003999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node042 at 2010-06-26 02:13:48
IDJOB=2683667
IDBENCH=72129
IDSOLVER=1192
FILE ID=node042/2683667-1277511228
PBS_JOBID= 11190608
Free space on /tmp= 62252 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB10/normalized-PB10/OPT-SMALLINT-LIN/leberre/opb-paranoid/misc2010/random/rand.biglist/normalized-rand199fd6.cudf.paranoid.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2683667-1277511228/watcher-2683667-1277511228 -o /tmp/evaluation-result-2683667-1277511228/solver-2683667-1277511228 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2683667-1277511228.opb

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

MD5SUM BENCH= ed6439846d599590769e7881fb6d3c5e
RANDOM SEED=239433787

node042.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		: 3000.213
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	: 6000.42
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		: 3000.213
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:       1807964 kB
Buffers:         35416 kB
Cached:         117444 kB
SwapCached:       5948 kB
Active:          68548 kB
Inactive:        97128 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1807964 kB
SwapTotal:     4192956 kB
SwapFree:      4139448 kB
Dirty:            2764 kB
Writeback:           0 kB
AnonPages:       11520 kB
Mapped:          11884 kB
Slab:            63300 kB
PageTables:       4124 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   184168 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= 62252 MiB
End job on node042 at 2010-06-26 02:13:48