Trace number 2686849

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 6.52601 6.52787

General information on the benchmark

Name/OPT-SMALLINT-LIN/oliveras/j60opt/
normalized-j6035_5.std.opb
MD5SUM5c066885a5dc7aa42baae564c5305e8c
Bench CategoryOPT-SMALLINT-LIN (optimisation, small integers, linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark76
Best CPU time to get the best result obtained on this benchmark5.95909
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables36722
Total number of constraints129108
Number of constraints which are clauses127908
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 constraint21
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
1.29/1.35	c constraints 900/0 clauses 127477/0 units 4984
1.29/1.35	c vars 36722
1.29/1.35	c objective 300 + 0
4.79/4.83	c 4.47832 364.031 0 0
6.49/6.51	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-2686849-1278442914/watcher-2686849-1278442914 -o /tmp/evaluation-result-2686849-1278442914/solver-2686849-1278442914 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2686849-1278442914.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: 1.00 1.00 1.00 3/106 22542
/proc/meminfo: memFree=1815816/2059040 swapFree=4192956/4192956
[pid=22542] ppid=22540 vsize=2208 CPUtime=0
/proc/22542/stat : 22542 (pbct) R 22540 22542 21487 0 -1 4202496 263 0 0 0 0 0 0 0 20 0 1 0 12504570 2260992 185 1992294400 134512640 136485738 4288338016 18446744073709551615 135411191 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22542/statm: 552 185 156 482 0 68 0

[startup+0.02877 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 22542
/proc/meminfo: memFree=1815816/2059040 swapFree=4192956/4192956
[pid=22542] ppid=22540 vsize=2340 CPUtime=0.02
/proc/22542/stat : 22542 (pbct) R 22540 22542 21487 0 -1 4202496 284 0 0 0 2 0 0 0 20 0 1 0 12504570 2396160 206 1992294400 134512640 136485738 4288338016 18446744073709551615 135864606 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22542/statm: 585 206 156 482 0 101 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2340

[startup+0.100786 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 22542
/proc/meminfo: memFree=1815816/2059040 swapFree=4192956/4192956
[pid=22542] ppid=22540 vsize=2604 CPUtime=0.09
/proc/22542/stat : 22542 (pbct) R 22540 22542 21487 0 -1 4202496 353 0 0 0 9 0 0 0 20 0 1 0 12504570 2666496 275 1992294400 134512640 136485738 4288338016 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22542/statm: 651 275 156 482 0 167 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2604

[startup+0.300828 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 22542
/proc/meminfo: memFree=1815816/2059040 swapFree=4192956/4192956
[pid=22542] ppid=22540 vsize=3396 CPUtime=0.29
/proc/22542/stat : 22542 (pbct) R 22540 22542 21487 0 -1 4202496 547 0 0 0 29 0 0 0 20 0 1 0 12504570 3477504 469 1992294400 134512640 136485738 4288338016 18446744073709551615 135857057 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22542/statm: 849 469 157 482 0 365 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3396

[startup+0.700914 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 22542
/proc/meminfo: memFree=1815816/2059040 swapFree=4192956/4192956
[pid=22542] ppid=22540 vsize=5100 CPUtime=0.69
/proc/22542/stat : 22542 (pbct) R 22540 22542 21487 0 -1 4202496 1025 0 0 0 69 0 0 0 20 0 1 0 12504570 5222400 849 1992294400 134512640 136485738 4288338016 18446744073709551615 134537440 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22542/statm: 1275 849 157 482 0 791 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5100

[startup+1.50109 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 22543
/proc/meminfo: memFree=1811964/2059040 swapFree=4192956/4192956
[pid=22542] ppid=22540 vsize=26840 CPUtime=1.49
/proc/22542/stat : 22542 (pbct) R 22540 22542 21487 0 -1 4202496 6491 0 0 0 146 3 0 0 23 0 1 0 12504570 27484160 6315 1992294400 134512640 136485738 4288338016 18446744073709551615 134651003 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22542/statm: 6710 6315 194 482 0 6226 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 26840

[startup+3.10143 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 22543
/proc/meminfo: memFree=1724420/2059040 swapFree=4192956/4192956
[pid=22542] ppid=22540 vsize=182264 CPUtime=3.09
/proc/22542/stat : 22542 (pbct) R 22540 22542 21487 0 -1 4202496 47973 0 0 0 291 18 0 0 25 0 1 0 12504570 186638336 44649 1992294400 134512640 136485738 4288338016 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22542/statm: 45566 44649 198 482 0 45082 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 182264

[startup+6.30111 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 22543
/proc/meminfo: memFree=1476916/2059040 swapFree=4192956/4192956
[pid=22542] ppid=22540 vsize=341168 CPUtime=6.29
/proc/22542/stat : 22542 (pbct) R 22540 22542 21487 0 -1 4202496 97346 0 0 0 593 36 0 0 25 0 1 0 12504570 349356032 82625 1992294400 134512640 136485738 4288338016 18446744073709551615 135856849 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22542/statm: 85292 82625 232 482 0 84808 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 341168

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

[startup+6.50115 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 22543
/proc/meminfo: memFree=1655476/2059040 swapFree=4192956/4192956
[pid=22542] ppid=22540 vsize=161064 CPUtime=6.49
/proc/22542/stat : 22542 (pbct) R 22540 22542 21487 0 -1 4202496 97347 0 0 0 612 37 0 0 25 0 1 0 12504570 164929536 39989 1992294400 134512640 136485738 4288338016 18446744073709551615 135839892 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22542/statm: 40266 39989 233 482 0 39782 0
Current children cumulated CPU time (s) 6.49
Current children cumulated vsize (KiB) 161064

Child status: 0
Real time (s): 6.52787
CPU time (s): 6.52601
CPU user time (s): 6.12807
CPU system time (s): 0.397939
CPU usage (%): 99.9714
Max. virtual memory (cumulated for all children) (KiB): 373188

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.12807
system time used= 0.397939
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 97349
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= 2
involuntary context switches= 13

runsolver used 0.018997 second user time and 0.036994 second system time

The end

Launcher Data 

Begin job on node010 at 2010-07-06 21:01:54
IDJOB=2686849
IDBENCH=76942
IDSOLVER=1170
FILE ID=node010/2686849-1278442914
PBS_JOBID= 11233461
Free space on /tmp= 62488 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB10/normalized-PB10/OPT-SMALLINT-LIN/oliveras/j60opt/normalized-j6035_5.std.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2686849-1278442914/watcher-2686849-1278442914 -o /tmp/evaluation-result-2686849-1278442914/solver-2686849-1278442914 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2686849-1278442914.opb

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

MD5SUM BENCH= 5c066885a5dc7aa42baae564c5305e8c
RANDOM SEED=1057027503

node010.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		: 3000.258
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	: 6000.51
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		: 3000.258
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	: 5599.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1816344 kB
Buffers:         19732 kB
Cached:          93040 kB
SwapCached:          0 kB
Active:          71348 kB
Inactive:       101240 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1816344 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            5612 kB
Writeback:           0 kB
AnonPages:       59796 kB
Mapped:          14420 kB
Slab:            48164 kB
PageTables:       4100 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180268 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= 62488 MiB
End job on node010 at 2010-07-06 21:02:01