Trace number 1825601

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
SAT07 reference solver: picosat 535UNSAT 6.583 6.58583

General information on the benchmark

Namemanol-pipe-c9.cnf
MD5SUM7f47eb2c5986b40772da3e38cf0759b1
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.45163
Satisfiable
(Un)Satisfiability was proved
Number of variables15214
Number of clauses45082
Sum of the clauses size105190
Maximum clause length3
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 230054
Number of clauses of size 315027
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

6.49/6.58	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1825601-1242510774/watcher-1825601-1242510774 -o /tmp/evaluation-result-1825601-1242510774/solver-1825601-1242510774 -C 10000 -W 12000 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1825601-1242510774.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 12000 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 3582
/proc/meminfo: memFree=1595064/2055920 swapFree=4175944/4192956
[pid=3582] ppid=3580 vsize=568 CPUtime=0
/proc/3582/stat : 3582 (picosat) R 3580 3582 3395 0 -1 4194304 68 0 0 0 0 0 0 0 18 0 1 0 279110593 581632 54 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/3582/statm: 142 54 40 102 0 37 0

[startup+0.0961161 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 3582
/proc/meminfo: memFree=1595064/2055920 swapFree=4175944/4192956
[pid=3582] ppid=3580 vsize=1360 CPUtime=0.09
/proc/3582/stat : 3582 (picosat) R 3580 3582 3395 0 -1 4194304 237 0 0 0 4 5 0 0 18 0 1 0 279110593 1392640 223 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/3582/statm: 340 223 40 102 0 235 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1360

[startup+0.102117 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 3582
/proc/meminfo: memFree=1595064/2055920 swapFree=4175944/4192956
[pid=3582] ppid=3580 vsize=1360 CPUtime=0.09
/proc/3582/stat : 3582 (picosat) R 3580 3582 3395 0 -1 4194304 241 0 0 0 4 5 0 0 18 0 1 0 279110593 1392640 227 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/3582/statm: 340 227 40 102 0 235 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1360

[startup+0.301137 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 3582
/proc/meminfo: memFree=1595064/2055920 swapFree=4175944/4192956
[pid=3582] ppid=3580 vsize=2356 CPUtime=0.29
/proc/3582/stat : 3582 (picosat) R 3580 3582 3395 0 -1 4194304 505 0 0 0 14 15 0 0 19 0 1 0 279110593 2412544 491 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/3582/statm: 589 491 40 102 0 484 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2356

[startup+0.70118 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 3582
/proc/meminfo: memFree=1595064/2055920 swapFree=4175944/4192956
[pid=3582] ppid=3580 vsize=2944 CPUtime=0.69
/proc/3582/stat : 3582 (picosat) R 3580 3582 3395 0 -1 4194304 652 0 0 0 52 17 0 0 23 0 1 0 279110593 3014656 630 1992294400 134512640 134931368 4294956240 18446744073709551615 134524239 0 0 4096 0 0 0 0 17 1 0 0
/proc/3582/statm: 736 630 42 102 0 631 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2944

[startup+1.50127 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 3583
/proc/meminfo: memFree=1592496/2055920 swapFree=4175944/4192956
[pid=3582] ppid=3580 vsize=3216 CPUtime=1.49
/proc/3582/stat : 3582 (picosat) R 3580 3582 3395 0 -1 4194304 712 0 0 0 132 17 0 0 25 0 1 0 279110593 3293184 688 1992294400 134512640 134931368 4294956240 18446744073709551615 134529446 0 0 4096 0 0 0 0 17 1 0 0
/proc/3582/statm: 804 688 48 102 0 699 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3216

[startup+3.10144 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 3583
/proc/meminfo: memFree=1592176/2055920 swapFree=4175944/4192956
[pid=3582] ppid=3580 vsize=3336 CPUtime=3.09
/proc/3582/stat : 3582 (picosat) R 3580 3582 3395 0 -1 4194304 733 0 0 0 292 17 0 0 25 0 1 0 279110593 3416064 709 1992294400 134512640 134931368 4294956240 18446744073709551615 134597664 0 0 4096 0 0 0 0 17 1 0 0
/proc/3582/statm: 834 709 48 102 0 729 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3336

[startup+6.30178 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 3583
/proc/meminfo: memFree=1592048/2055920 swapFree=4175944/4192956
[pid=3582] ppid=3580 vsize=3468 CPUtime=6.29
/proc/3582/stat : 3582 (picosat) R 3580 3582 3395 0 -1 4194304 781 0 0 0 612 17 0 0 25 0 1 0 279110593 3551232 757 1992294400 134512640 134931368 4294956240 18446744073709551615 134525811 0 0 4096 0 0 0 0 17 1 0 0
/proc/3582/statm: 867 757 48 102 0 762 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 3468

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

[startup+6.5018 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 3583
/proc/meminfo: memFree=1591984/2055920 swapFree=4175944/4192956
[pid=3582] ppid=3580 vsize=3468 CPUtime=6.49
/proc/3582/stat : 3582 (picosat) R 3580 3582 3395 0 -1 4194304 781 0 0 0 632 17 0 0 25 0 1 0 279110593 3551232 757 1992294400 134512640 134931368 4294956240 18446744073709551615 134524238 0 0 4096 0 0 0 0 17 1 0 0
/proc/3582/statm: 867 757 48 102 0 762 0
Current children cumulated CPU time (s) 6.49
Current children cumulated vsize (KiB) 3468

Child status: 20
Real time (s): 6.58583
CPU time (s): 6.583
CPU user time (s): 6.40403
CPU system time (s): 0.178972
CPU usage (%): 99.9569
Max. virtual memory (cumulated for all children) (KiB): 3468

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.40403
system time used= 0.178972
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 787
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= 17

runsolver used 0.013997 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node21 at 2009-05-16 23:52:54
IDJOB=1825601
IDBENCH=71771
IDSOLVER=666
FILE ID=node21/1825601-1242510774
PBS_JOBID= 9307056
Free space on /tmp= 66036 MiB

SOLVER NAME= SAT07 reference solver: picosat 535
BENCH NAME= SAT_RACE06/manol-pipe-c9.cnf
COMMAND LINE= HOME/picosat BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1825601-1242510774/watcher-1825601-1242510774 -o /tmp/evaluation-result-1825601-1242510774/solver-1825601-1242510774 -C 10000 -W 12000 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1825601-1242510774.cnf            

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 7f47eb2c5986b40772da3e38cf0759b1
RANDOM SEED=931337681

node21.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.233
cache size	: 2048 KB
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
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		: 3000.233
cache size	: 2048 KB
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1595480 kB
Buffers:         46912 kB
Cached:         356908 kB
SwapCached:      11252 kB
Active:         100592 kB
Inactive:       315908 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1595480 kB
SwapTotal:     4192956 kB
SwapFree:      4175944 kB
Dirty:            1344 kB
Writeback:           0 kB
Mapped:          15040 kB
Slab:            30016 kB
Committed_AS:  1065304 kB
PageTables:       1384 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66036 MiB
End job on node21 at 2009-05-16 23:53:01