Trace number 2686784

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 7.31089 7.31259

General information on the benchmark

Name/OPT-SMALLINT-LIN/oliveras/
j60opt/normalized-j607_3.std.opb
MD5SUM56c6fbd36b8657f391bc65e8db183044
Bench CategoryOPT-SMALLINT-LIN (optimisation, small integers, linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark62
Best CPU time to get the best result obtained on this benchmark5.9331
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 constraints117911
Number of constraints which are clauses116711
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 constraint36
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
1.29/1.31	c constraints 1200/0 clauses 116356/0 units 9753
1.29/1.31	c vars 36722
1.29/1.31	c objective 300 + 0
5.39/5.45	c 5.04623 390.387 0 0
7.19/7.29	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-2686784-1278442346/watcher-2686784-1278442346 -o /tmp/evaluation-result-2686784-1278442346/solver-2686784-1278442346 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2686784-1278442346.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 19173
/proc/meminfo: memFree=1738444/2059040 swapFree=4192956/4192956
[pid=19173] ppid=19171 vsize=2208 CPUtime=0
/proc/19173/stat : 19173 (pbct) R 19171 19173 18099 0 -1 4202496 263 0 0 0 0 0 0 0 20 0 1 0 12448139 2260992 185 1992294400 134512640 136485738 4292647120 18446744073709551615 134537595 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/19173/statm: 552 185 156 482 0 68 0

[startup+0.082632 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 19173
/proc/meminfo: memFree=1738444/2059040 swapFree=4192956/4192956
[pid=19173] ppid=19171 vsize=2472 CPUtime=0.08
/proc/19173/stat : 19173 (pbct) R 19171 19173 18099 0 -1 4202496 338 0 0 0 8 0 0 0 20 0 1 0 12448139 2531328 260 1992294400 134512640 136485738 4292647120 18446744073709551615 135415688 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/19173/statm: 618 260 156 482 0 134 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 2472

[startup+0.101634 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 19173
/proc/meminfo: memFree=1738444/2059040 swapFree=4192956/4192956
[pid=19173] ppid=19171 vsize=2604 CPUtime=0.1
/proc/19173/stat : 19173 (pbct) R 19171 19173 18099 0 -1 4202496 352 0 0 0 10 0 0 0 20 0 1 0 12448139 2666496 274 1992294400 134512640 136485738 4292647120 18446744073709551615 135416615 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/19173/statm: 651 274 156 482 0 167 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2604

[startup+0.301654 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 19173
/proc/meminfo: memFree=1738444/2059040 swapFree=4192956/4192956
[pid=19173] ppid=19171 vsize=3264 CPUtime=0.29
/proc/19173/stat : 19173 (pbct) R 19171 19173 18099 0 -1 4202496 544 0 0 0 29 0 0 0 20 0 1 0 12448139 3342336 466 1992294400 134512640 136485738 4292647120 18446744073709551615 135180888 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/19173/statm: 816 466 157 482 0 332 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3264

[startup+0.700697 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 19173
/proc/meminfo: memFree=1738444/2059040 swapFree=4192956/4192956
[pid=19173] ppid=19171 vsize=4968 CPUtime=0.69
/proc/19173/stat : 19173 (pbct) R 19171 19173 18099 0 -1 4202496 1001 0 0 0 69 0 0 0 21 0 1 0 12448139 5087232 825 1992294400 134512640 136485738 4292647120 18446744073709551615 135446965 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/19173/statm: 1242 825 157 482 0 758 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4968

[startup+1.50078 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 19174
/proc/meminfo: memFree=1734716/2059040 swapFree=4192956/4192956
[pid=19173] ppid=19171 vsize=30280 CPUtime=1.49
/proc/19173/stat : 19173 (pbct) R 19171 19173 18099 0 -1 4202496 7255 0 0 0 146 3 0 0 23 0 1 0 12448139 31006720 7079 1992294400 134512640 136485738 4292647120 18446744073709551615 134542600 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/19173/statm: 7570 7079 193 482 0 7086 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 30280

[startup+3.10095 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 19174
/proc/meminfo: memFree=1639608/2059040 swapFree=4192956/4192956
[pid=19173] ppid=19171 vsize=184188 CPUtime=3.09
/proc/19173/stat : 19173 (pbct) R 19171 19173 18099 0 -1 4202496 48386 0 0 0 290 19 0 0 25 0 1 0 12448139 188608512 45072 1992294400 134512640 136485738 4292647120 18446744073709551615 135848595 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/19173/statm: 46047 45073 198 482 0 45563 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 184188

[startup+6.30128 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 19174
/proc/meminfo: memFree=1354160/2059040 swapFree=4192956/4192956
[pid=19173] ppid=19171 vsize=375908 CPUtime=6.29
/proc/19173/stat : 19173 (pbct) R 19171 19173 18099 0 -1 4202496 104684 0 0 0 588 41 0 0 25 0 1 0 12448139 384929792 91305 1992294400 134512640 136485738 4292647120 18446744073709551615 135839892 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/19173/statm: 93977 91305 232 482 0 93493 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 375908

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

[startup+7.10137 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 19174
/proc/meminfo: memFree=1372388/2059040 swapFree=4192956/4192956
[pid=19173] ppid=19171 vsize=347012 CPUtime=7.09
/proc/19173/stat : 19173 (pbct) R 19171 19173 18099 0 -1 4202496 104685 0 0 0 668 41 0 0 25 0 1 0 12448139 355340288 86465 1992294400 134512640 136485738 4292647120 18446744073709551615 135839892 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/19173/statm: 86753 86465 233 482 0 86269 0
Current children cumulated CPU time (s) 7.09
Current children cumulated vsize (KiB) 347012

[startup+7.30139 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 19174
/proc/meminfo: memFree=1372388/2059040 swapFree=4192956/4192956
[pid=19173] ppid=19171 vsize=0 CPUtime=7.29
/proc/19173/stat : 19173 (pbct) R 19171 19173 18099 0 -1 4202500 104687 0 0 0 686 43 0 0 25 0 1 0 12448139 0 0 1992294400 0 0 0 0 0 0 0 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/19173/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 7.29
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 7.31259
CPU time (s): 7.31089
CPU user time (s): 6.86296
CPU system time (s): 0.447931
CPU usage (%): 99.9767
Max. virtual memory (cumulated for all children) (KiB): 400252

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.86296
system time used= 0.447931
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 104687
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= 24

runsolver used 0.010998 second user time and 0.042993 second system time

The end

Launcher Data 

Begin job on node007 at 2010-07-06 20:52:26
IDJOB=2686784
IDBENCH=76734
IDSOLVER=1170
FILE ID=node007/2686784-1278442346
PBS_JOBID= 11233463
Free space on /tmp= 62488 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB10/normalized-PB10/OPT-SMALLINT-LIN/oliveras/j60opt/normalized-j607_3.std.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2686784-1278442346/watcher-2686784-1278442346 -o /tmp/evaluation-result-2686784-1278442346/solver-2686784-1278442346 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2686784-1278442346.opb

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

MD5SUM BENCH= 56c6fbd36b8657f391bc65e8db183044
RANDOM SEED=1018841933

node007.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		: 3000.256
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		: 3000.256
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	: 5599.52
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1738972 kB
Buffers:         25356 kB
Cached:         160552 kB
SwapCached:          0 kB
Active:         106888 kB
Inactive:       138856 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1738972 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            5464 kB
Writeback:           0 kB
AnonPages:       59812 kB
Mapped:          14520 kB
Slab:            52472 kB
PageTables:       4180 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181872 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 node007 at 2010-07-06 20:52:33