Trace number 2684975

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 NameAnswerCPU timeWall clock time
PB/CT 0.1 fixedUNSAT 27.3318 27.3454

General information on the benchmark

Name/DEC-SMALLINT-LIN/oliveras/j120/
normalized-j12027_7-unsat.opb
MD5SUM9cb7abe340995f692b6fcedb078085dd
Bench CategoryDEC-SMALLINT-LIN (no 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 benchmark2.20466
Has Objective FunctionNO
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables27588
Total number of constraints91561
Number of constraints which are clauses91109
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints452
Minimum length of a constraint1
Maximum length of a constraint66
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 21
Number of bits of the biggest number in a constraint 5
Biggest sum of numbers in a constraint 415
Number of bits of the biggest sum of numbers9
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
2.99/3.02	c constraints 452/0 clauses 22406/0 units 18647
2.99/3.02	c vars 27588
26.48/26.58	c 26.105 161.086 4494 7875
27.27/27.32	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-2684975-1278437236/watcher-2684975-1278437236 -o /tmp/evaluation-result-2684975-1278437236/solver-2684975-1278437236 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2684975-1278437236.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 20534
/proc/meminfo: memFree=1772676/2059040 swapFree=4192956/4192956
[pid=20534] ppid=20532 vsize=2136 CPUtime=0
/proc/20534/stat : 20534 (pbct) R 20532 20534 19989 0 -1 4202496 248 0 0 0 0 0 0 0 20 0 1 0 11935143 2187264 167 1992294400 134512640 136421960 4289656240 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/20534/statm: 534 167 144 467 0 65 0

[startup+0.015651 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 20534
/proc/meminfo: memFree=1772676/2059040 swapFree=4192956/4192956
[pid=20534] ppid=20532 vsize=2136 CPUtime=0.01
/proc/20534/stat : 20534 (pbct) R 20532 20534 19989 0 -1 4202496 256 0 0 0 1 0 0 0 20 0 1 0 11935143 2187264 175 1992294400 134512640 136421960 4289656240 18446744073709551615 135378151 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/20534/statm: 534 175 144 467 0 65 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2136

[startup+0.101663 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 20534
/proc/meminfo: memFree=1772676/2059040 swapFree=4192956/4192956
[pid=20534] ppid=20532 vsize=2532 CPUtime=0.09
/proc/20534/stat : 20534 (pbct) R 20532 20534 19989 0 -1 4202496 344 0 0 0 9 0 0 0 20 0 1 0 11935143 2592768 263 1992294400 134512640 136421960 4289656240 18446744073709551615 135160306 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/20534/statm: 633 263 144 467 0 164 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2532

[startup+0.301691 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 20534
/proc/meminfo: memFree=1772676/2059040 swapFree=4192956/4192956
[pid=20534] ppid=20532 vsize=3452 CPUtime=0.29
/proc/20534/stat : 20534 (pbct) R 20532 20534 19989 0 -1 4202496 581 0 0 0 29 0 0 0 20 0 1 0 11935143 3534848 467 1992294400 134512640 136421960 4289656240 18446744073709551615 135372656 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/20534/statm: 863 467 144 467 0 394 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3452

[startup+0.701747 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 20534
/proc/meminfo: memFree=1772676/2059040 swapFree=4192956/4192956
[pid=20534] ppid=20532 vsize=5028 CPUtime=0.69
/proc/20534/stat : 20534 (pbct) R 20532 20534 19989 0 -1 4202496 1024 0 0 0 69 0 0 0 20 0 1 0 11935143 5148672 845 1992294400 134512640 136421960 4289656240 18446744073709551615 135377342 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/20534/statm: 1257 845 144 467 0 788 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5028

[startup+1.50086 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 20535
/proc/meminfo: memFree=1766964/2059040 swapFree=4192956/4192956
[pid=20534] ppid=20532 vsize=7800 CPUtime=1.49
/proc/20534/stat : 20534 (pbct) R 20532 20534 19989 0 -1 4202496 1728 0 0 0 148 1 0 0 23 0 1 0 11935143 7987200 1549 1992294400 134512640 136421960 4289656240 18446744073709551615 135829965 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/20534/statm: 1950 1549 145 467 0 1481 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7800

[startup+3.10109 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 20535
/proc/meminfo: memFree=1766716/2059040 swapFree=4192956/4192956
[pid=20534] ppid=20532 vsize=13764 CPUtime=3.09
/proc/20534/stat : 20534 (pbct) R 20532 20534 19989 0 -1 4202496 3211 0 0 0 308 1 0 0 25 0 1 0 11935143 14094336 3032 1992294400 134512640 136421960 4289656240 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20534/statm: 3441 3033 186 467 0 2972 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 13764

[startup+6.30154 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 20535
/proc/meminfo: memFree=1616056/2059040 swapFree=4192956/4192956
[pid=20534] ppid=20532 vsize=164288 CPUtime=6.29
/proc/20534/stat : 20534 (pbct) R 20532 20534 19989 0 -1 4202496 41914 0 0 0 609 20 0 0 25 0 1 0 11935143 168230912 39243 1992294400 134512640 136421960 4289656240 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20534/statm: 41072 39243 213 467 0 40603 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 164288

[startup+12.7005 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 20535
/proc/meminfo: memFree=1615808/2059040 swapFree=4192956/4192956
[pid=20534] ppid=20532 vsize=164552 CPUtime=12.69
/proc/20534/stat : 20534 (pbct) R 20532 20534 19989 0 -1 4202496 41961 0 0 0 1240 29 0 0 25 0 1 0 11935143 168501248 39290 1992294400 134512640 136421960 4289656240 18446744073709551615 135026960 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20534/statm: 41138 39290 213 467 0 40669 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 164552

[startup+25.5013 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 20535
/proc/meminfo: memFree=1615684/2059040 swapFree=4192956/4192956
[pid=20534] ppid=20532 vsize=164948 CPUtime=25.48
/proc/20534/stat : 20534 (pbct) R 20532 20534 19989 0 -1 4202496 42069 0 0 0 2503 45 0 0 25 0 1 0 11935143 168906752 39398 1992294400 134512640 136421960 4289656240 18446744073709551615 135028857 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20534/statm: 41237 39398 213 467 0 40768 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 164948

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

[startup+26.3014 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 20535
/proc/meminfo: memFree=1615684/2059040 swapFree=4192956/4192956
[pid=20534] ppid=20532 vsize=164948 CPUtime=26.29
/proc/20534/stat : 20534 (pbct) R 20532 20534 19989 0 -1 4202496 42075 0 0 0 2583 46 0 0 25 0 1 0 11935143 168906752 39404 1992294400 134512640 136421960 4289656240 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20534/statm: 41237 39404 213 467 0 40768 0
Current children cumulated CPU time (s) 26.29
Current children cumulated vsize (KiB) 164948

[startup+27.1005 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 20535
/proc/meminfo: memFree=1615684/2059040 swapFree=4192956/4192956
[pid=20534] ppid=20532 vsize=153988 CPUtime=27.07
/proc/20534/stat : 20534 (pbct) R 20532 20534 19989 0 -1 4202496 42100 0 0 0 2661 46 0 0 25 0 1 0 11935143 157683712 37543 1992294400 134512640 136421960 4289656240 18446744073709551615 135801316 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20534/statm: 38497 37543 237 467 0 38028 0
Current children cumulated CPU time (s) 27.07
Current children cumulated vsize (KiB) 153988

[startup+27.3005 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 20535
/proc/meminfo: memFree=1615684/2059040 swapFree=4192956/4192956
[pid=20534] ppid=20532 vsize=146636 CPUtime=27.27
/proc/20534/stat : 20534 (pbct) R 20532 20534 19989 0 -1 4202496 42100 0 0 0 2681 46 0 0 25 0 1 0 11935143 150155264 36320 1992294400 134512640 136421960 4289656240 18446744073709551615 134514069 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20534/statm: 36659 36320 237 467 0 36190 0
Current children cumulated CPU time (s) 27.27
Current children cumulated vsize (KiB) 146636

Child status: 0
Real time (s): 27.3454
CPU time (s): 27.3318
CPU user time (s): 26.8489
CPU system time (s): 0.482926
CPU usage (%): 99.9503
Max. virtual memory (cumulated for all children) (KiB): 164948

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 26.8489
system time used= 0.482926
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 42101
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= 403

runsolver used 0.045993 second user time and 0.143978 second system time

The end

Launcher Data 

Begin job on node029 at 2010-07-06 19:27:16
IDJOB=2684975
IDBENCH=74228
IDSOLVER=1192
FILE ID=node029/2684975-1278437236
PBS_JOBID= 11233449
Free space on /tmp= 62556 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB10/normalized-PB10/DEC-SMALLINT-LIN/oliveras/j120/normalized-j12027_7-unsat.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2684975-1278437236/watcher-2684975-1278437236 -o /tmp/evaluation-result-2684975-1278437236/solver-2684975-1278437236 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2684975-1278437236.opb

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

MD5SUM BENCH= 9cb7abe340995f692b6fcedb078085dd
RANDOM SEED=1785889120

node029.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		: 3000.264
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		: 3000.264
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:       1773204 kB
Buffers:         15648 kB
Cached:         134836 kB
SwapCached:          0 kB
Active:         122368 kB
Inactive:        88068 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1773204 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            5416 kB
Writeback:           0 kB
AnonPages:       59952 kB
Mapped:          14380 kB
Slab:            53660 kB
PageTables:       4088 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181012 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= 62556 MiB
End job on node029 at 2010-07-06 19:27:44