Trace number 2685293

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 0.1UNSAT 2.19267 2.19377

General information on the benchmark

Name/DEC-SMALLINT-LIN/oliveras/j90/
normalized-j907_8-unsat.opb
MD5SUM6d22d1a2ad9ad09989fc3383e19b4a9d
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 benchmark0.138978
Has Objective FunctionNO
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables10920
Total number of constraints34033
Number of constraints which are clauses33797
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints236
Minimum length of a constraint1
Maximum length of a constraint50
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 60
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 345
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 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.29/0.34	c constraints 236/0 clauses 33261/0 units 315
0.29/0.34	c vars 10920
1.59/1.62	c 1.48077 122.879 0 0
2.10/2.18	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-2685293-1278440503/watcher-2685293-1278440503 -o /tmp/evaluation-result-2685293-1278440503/solver-2685293-1278440503 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2685293-1278440503.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: 1.15 1.03 1.05 3/106 19768
/proc/meminfo: memFree=1409568/2059040 swapFree=4192956/4192956
[pid=19768] ppid=19766 vsize=2208 CPUtime=0
/proc/19768/stat : 19768 (pbct) R 19766 19768 18871 0 -1 4202496 258 0 0 0 0 0 0 0 20 0 1 0 12263838 2260992 181 1992294400 134512640 136485738 4291020192 18446744073709551615 135415651 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/19768/statm: 552 181 157 482 0 68 0

[startup+0.0420001 s]
/proc/loadavg: 1.15 1.03 1.05 3/106 19768
/proc/meminfo: memFree=1409568/2059040 swapFree=4192956/4192956
[pid=19768] ppid=19766 vsize=2340 CPUtime=0.04
/proc/19768/stat : 19768 (pbct) R 19766 19768 18871 0 -1 4202496 293 0 0 0 4 0 0 0 20 0 1 0 12263838 2396160 216 1992294400 134512640 136485738 4291020192 18446744073709551615 135178827 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/19768/statm: 585 216 157 482 0 101 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 2340

[startup+0.2 s]
/proc/loadavg: 1.15 1.03 1.05 3/106 19768
/proc/meminfo: memFree=1409568/2059040 swapFree=4192956/4192956
[pid=19768] ppid=19766 vsize=3000 CPUtime=0.19
/proc/19768/stat : 19768 (pbct) R 19766 19768 18871 0 -1 4202496 450 0 0 0 19 0 0 0 20 0 1 0 12263838 3072000 373 1992294400 134512640 136485738 4291020192 18446744073709551615 134537360 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/19768/statm: 750 373 157 482 0 266 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 3000

[startup+0.4 s]
/proc/loadavg: 1.15 1.03 1.05 3/106 19768
/proc/meminfo: memFree=1409568/2059040 swapFree=4192956/4192956
[pid=19768] ppid=19766 vsize=12596 CPUtime=0.39
/proc/19768/stat : 19768 (pbct) R 19766 19768 18871 0 -1 4202496 2849 0 0 0 38 1 0 0 20 0 1 0 12263838 12898304 2739 1992294400 134512640 136485738 4291020192 18446744073709551615 135849312 0 0 4096 16387 0 0 0 17 0 0 0 0
/proc/19768/statm: 3149 2741 191 482 0 2665 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 12596

[startup+0.7 s]
/proc/loadavg: 1.15 1.03 1.05 3/106 19768
/proc/meminfo: memFree=1409568/2059040 swapFree=4192956/4192956
[pid=19768] ppid=19766 vsize=46088 CPUtime=0.69
/proc/19768/stat : 19768 (pbct) R 19766 19768 18871 0 -1 4202496 11526 0 0 0 64 5 0 0 21 0 1 0 12263838 47194112 10982 1992294400 134512640 136485738 4291020192 18446744073709551615 135694486 0 0 4096 16387 0 0 0 17 0 0 0 0
/proc/19768/statm: 11522 10984 191 482 0 11038 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 46088

[startup+1.501 s]
/proc/loadavg: 1.15 1.03 1.05 2/107 19769
/proc/meminfo: memFree=1346072/2059040 swapFree=4192956/4192956
[pid=19768] ppid=19766 vsize=123588 CPUtime=1.49
/proc/19768/stat : 19768 (pbct) R 19766 19768 18871 0 -1 4202496 31924 0 0 0 136 13 0 0 23 0 1 0 12263838 126554112 29811 1992294400 134512640 136485738 4291020192 18446744073709551615 134948163 0 0 4096 16387 0 0 0 17 0 0 0 0
/proc/19768/statm: 30897 29811 208 482 0 30413 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 123588

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

[startup+1.901 s]
/proc/loadavg: 1.15 1.03 1.05 2/107 19769
/proc/meminfo: memFree=1346072/2059040 swapFree=4192956/4192956
[pid=19768] ppid=19766 vsize=116540 CPUtime=1.89
/proc/19768/stat : 19768 (pbct) R 19766 19768 18871 0 -1 4202496 32406 0 0 0 175 14 0 0 25 0 1 0 12263838 119336960 28247 1992294400 134512640 136485738 4291020192 18446744073709551615 135839892 0 0 4096 16387 0 0 0 17 0 0 0 0
/proc/19768/statm: 29135 28247 230 482 0 28651 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 116540

[startup+2.102 s]
/proc/loadavg: 1.14 1.03 1.05 2/107 19769
/proc/meminfo: memFree=1296348/2059040 swapFree=4192956/4192956
[pid=19768] ppid=19766 vsize=116540 CPUtime=2.1
/proc/19768/stat : 19768 (pbct) R 19766 19768 18871 0 -1 4202496 32406 0 0 0 196 14 0 0 25 0 1 0 12263838 119336960 28247 1992294400 134512640 136485738 4291020192 18446744073709551615 135856849 0 0 4096 16387 0 0 0 17 0 0 0 0
/proc/19768/statm: 29135 28247 230 482 0 28651 0
Current children cumulated CPU time (s) 2.1
Current children cumulated vsize (KiB) 116540

Child status: 0
Real time (s): 2.19377
CPU time (s): 2.19267
CPU user time (s): 2.03969
CPU system time (s): 0.152976
CPU usage (%): 99.9497
Max. virtual memory (cumulated for all children) (KiB): 125824

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.03969
system time used= 0.152976
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 32409
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= 33

runsolver used 0.004999 second user time and 0.023996 second system time

The end

Launcher Data 

Begin job on node006 at 2010-07-06 20:21:43
IDJOB=2685293
IDBENCH=75253
IDSOLVER=1170
FILE ID=node006/2685293-1278440503
PBS_JOBID= 11233464
Free space on /tmp= 62580 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB10/normalized-PB10/DEC-SMALLINT-LIN/oliveras/j90/normalized-j907_8-unsat.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2685293-1278440503/watcher-2685293-1278440503 -o /tmp/evaluation-result-2685293-1278440503/solver-2685293-1278440503 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2685293-1278440503.opb

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

MD5SUM BENCH= 6d22d1a2ad9ad09989fc3383e19b4a9d
RANDOM SEED=1018841933

node006.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		: 3000.269
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	: 6000.53
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		: 3000.269
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	: 5599.46
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1409972 kB
Buffers:        111200 kB
Cached:         398920 kB
SwapCached:          0 kB
Active:         193892 kB
Inactive:       376700 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1409972 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            3236 kB
Writeback:          32 kB
AnonPages:       60440 kB
Mapped:          14432 kB
Slab:            56520 kB
PageTables:       4240 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   179676 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= 62580 MiB
End job on node006 at 2010-07-06 20:21:45