Trace number 2668636

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 4.55331 4.55422

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/
miplib3/normalized-mps-v2-20-10-mitre.opb
MD5SUM2b9af9044591fd3eb9f5def12c800cff
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark7677
Best CPU time to get the best result obtained on this benchmark26.299
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 7680
Optimality of the best value was proved NO
Number of variables10724
Total number of constraints1662
Number of constraints which are clauses140
Number of constraints which are cardinality constraints (but not clauses)1139
Number of constraints which are nor clauses,nor cardinality constraints383
Minimum length of a constraint3
Maximum length of a constraint98
Number of terms in the objective function 9324
Biggest coefficient in the objective function 213
Number of bits for the biggest coefficient in the objective function 8
Sum of the numbers in the objective function 909647
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 1069
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 909647
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 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.09/0.16	c constraints 1512/0 clauses 150/0 units 0
0.09/0.16	c vars 10724
0.09/0.16	c objective 9324 + -363860
3.39/3.40	c 3.16152 226.664 0 0
4.49/4.53	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-2668636-1276437898/watcher-2668636-1276437898 -o /tmp/evaluation-result-2668636-1276437898/solver-2668636-1276437898 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668636-1276437898.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: 0.99 0.97 0.99 3/106 23359
/proc/meminfo: memFree=1819808/2059040 swapFree=4140200/4192956
[pid=23359] ppid=23357 vsize=2488 CPUtime=0
/proc/23359/stat : 23359 (pbct) R 23357 23359 23222 0 -1 4202496 307 0 0 0 0 0 0 0 20 0 1 0 19393780 2547712 230 1992294400 134512640 136485738 4290780880 18446744073709551615 135332318 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23359/statm: 622 230 149 482 0 138 0

[startup+0.082694 s]
/proc/loadavg: 0.99 0.97 0.99 3/106 23359
/proc/meminfo: memFree=1819808/2059040 swapFree=4140200/4192956
[pid=23359] ppid=23357 vsize=4132 CPUtime=0.07
/proc/23359/stat : 23359 (pbct) R 23357 23359 23222 0 -1 4202496 735 0 0 0 7 0 0 0 20 0 1 0 19393780 4231168 625 1992294400 134512640 136485738 4290780880 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23359/statm: 1033 625 156 482 0 549 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 4132

[startup+0.100694 s]
/proc/loadavg: 0.99 0.97 0.99 3/106 23359
/proc/meminfo: memFree=1819808/2059040 swapFree=4140200/4192956
[pid=23359] ppid=23357 vsize=4660 CPUtime=0.09
/proc/23359/stat : 23359 (pbct) R 23357 23359 23222 0 -1 4202496 867 0 0 0 9 0 0 0 20 0 1 0 19393780 4771840 757 1992294400 134512640 136485738 4290780880 18446744073709551615 135845569 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23359/statm: 1165 758 156 482 0 681 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4660

[startup+0.30071 s]
/proc/loadavg: 0.99 0.97 0.99 3/106 23359
/proc/meminfo: memFree=1819808/2059040 swapFree=4140200/4192956
[pid=23359] ppid=23357 vsize=19628 CPUtime=0.29
/proc/23359/stat : 23359 (pbct) R 23357 23359 23222 0 -1 4202496 4573 0 0 0 28 1 0 0 20 0 1 0 19393780 20099072 4463 1992294400 134512640 136485738 4290780880 18446744073709551615 134741957 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23359/statm: 4907 4464 198 482 0 4423 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 19628

[startup+0.700743 s]
/proc/loadavg: 0.99 0.97 0.99 3/106 23359
/proc/meminfo: memFree=1819808/2059040 swapFree=4140200/4192956
[pid=23359] ppid=23357 vsize=48452 CPUtime=0.69
/proc/23359/stat : 23359 (pbct) R 23357 23359 23222 0 -1 4202496 12021 0 0 0 64 5 0 0 20 0 1 0 19393780 49614848 11538 1992294400 134512640 136485738 4290780880 18446744073709551615 134742056 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23359/statm: 12113 11538 198 482 0 11629 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 48452

[startup+1.50081 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 23360
/proc/meminfo: memFree=1754328/2059040 swapFree=4140200/4192956
[pid=23359] ppid=23357 vsize=94820 CPUtime=1.49
/proc/23359/stat : 23359 (pbct) R 23357 23359 23222 0 -1 4202496 24525 0 0 0 139 10 0 0 22 0 1 0 19393780 97095680 23108 1992294400 134512640 136485738 4290780880 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23359/statm: 23705 23108 198 482 0 23221 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 94820

[startup+3.10094 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 23360
/proc/meminfo: memFree=1685508/2059040 swapFree=4140200/4192956
[pid=23359] ppid=23357 vsize=220528 CPUtime=3.09
/proc/23359/stat : 23359 (pbct) R 23357 23359 23222 0 -1 4202496 57303 0 0 0 287 22 0 0 25 0 1 0 19393780 225820672 53234 1992294400 134512640 136485738 4290780880 18446744073709551615 134929489 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23359/statm: 55132 53234 210 482 0 54648 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 220528

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

[startup+3.901 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 23360
/proc/meminfo: memFree=1605776/2059040 swapFree=4140200/4192956
[pid=23359] ppid=23357 vsize=214972 CPUtime=3.89
/proc/23359/stat : 23359 (pbct) R 23357 23359 23222 0 -1 4202496 60364 0 0 0 365 24 0 0 25 0 1 0 19393780 220131328 52337 1992294400 134512640 136485738 4290780880 18446744073709551615 134720114 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23359/statm: 53743 52337 244 482 0 53259 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 214972

[startup+4.30103 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 23360
/proc/meminfo: memFree=1610116/2059040 swapFree=4140200/4192956
[pid=23359] ppid=23357 vsize=214972 CPUtime=4.3
/proc/23359/stat : 23359 (pbct) R 23357 23359 23222 0 -1 4202496 60364 0 0 0 406 24 0 0 25 0 1 0 19393780 220131328 52337 1992294400 134512640 136485738 4290780880 18446744073709551615 135839991 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23359/statm: 53743 52337 244 482 0 53259 0
Current children cumulated CPU time (s) 4.3
Current children cumulated vsize (KiB) 214972

[startup+4.50105 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 23360
/proc/meminfo: memFree=1610116/2059040 swapFree=4140200/4192956
[pid=23359] ppid=23357 vsize=202612 CPUtime=4.49
/proc/23359/stat : 23359 (pbct) R 23357 23359 23222 0 -1 4202496 60364 0 0 0 425 24 0 0 25 0 1 0 19393780 207474688 50307 1992294400 134512640 136485738 4290780880 18446744073709551615 135839991 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23359/statm: 50653 50307 244 482 0 50169 0
Current children cumulated CPU time (s) 4.49
Current children cumulated vsize (KiB) 202612

Child status: 0
Real time (s): 4.55422
CPU time (s): 4.55331
CPU user time (s): 4.28735
CPU system time (s): 0.265959
CPU usage (%): 99.98
Max. virtual memory (cumulated for all children) (KiB): 232100

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.28735
system time used= 0.265959
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 60365
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= 12

runsolver used 0.006998 second user time and 0.033994 second system time

The end

Launcher Data 

Begin job on node003 at 2010-06-13 16:04:58
IDJOB=2668636
IDBENCH=1882
IDSOLVER=1170
FILE ID=node003/2668636-1276437898
PBS_JOBID= 11173324
Free space on /tmp= 62556 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/miplib3/normalized-mps-v2-20-10-mitre.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668636-1276437898/watcher-2668636-1276437898 -o /tmp/evaluation-result-2668636-1276437898/solver-2668636-1276437898 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668636-1276437898.opb

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

MD5SUM BENCH= 2b9af9044591fd3eb9f5def12c800cff
RANDOM SEED=878099167

node003.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		: 3000.251
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	: 6000.50
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		: 3000.251
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:       1820336 kB
Buffers:         35060 kB
Cached:         125548 kB
SwapCached:       5728 kB
Active:          98284 kB
Inactive:        74624 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1820336 kB
SwapTotal:     4192956 kB
SwapFree:      4140200 kB
Dirty:            2648 kB
Writeback:           0 kB
AnonPages:       10832 kB
Mapped:          12992 kB
Slab:            44056 kB
PageTables:       3976 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181204 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= 62552 MiB
End job on node003 at 2010-06-13 16:05:03