Trace number 1736748

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
precosat 236SAT 0.12598 0.127673

General information on the benchmark

NameCRAFTED/parity-games/
instance_n4_i4_pp_ci_ce.cnf
MD5SUM91bf0f1cf73f97e8e8862cc30d68727a
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.012998
Satisfiable
(Un)Satisfiability was proved
Number of variables1572
Number of clauses9175
Sum of the clauses size28832
Maximum clause length12
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22524
Number of clauses of size 33596
Number of clauses of size 42300
Number of clauses of size 5752
Number of clauses of size over 53

Solver Data

0.00/0.00	c PicoSATLight Version 236 3e7a3f8825c0b9e241f38a63fee5517540b2feca
0.00/0.00	c Copyright (C) 2009, Armin Biere, JKU, Linz, Austria.  All rights reserved.
0.00/0.00	c Released on Sun Mar 22 10:16:26 CET 2009
0.00/0.00	c Compiled on Tue Mar 24 21:24:39 CET 2009
0.00/0.00	c g++ (GCC) 4.3.2 20081105 (Red Hat 4.3.2-7)
0.00/0.00	c -O3 -m32 -static -Wall -Wextra -DNDEBUG -DNLOGPRECO -DNSTATSPRECO
0.00/0.00	c -finline-limit=10000000 -fomit-frame-pointer -fno-exceptions
0.00/0.00	c Linux baghera 2.6.27.19-170.2.35.fc10.i686.PAE i686
0.00/0.00	c
0.00/0.00	c reading HOME/instance-1736748-1240813129.cnf
0.00/0.00	c found header 'p cnf 1572 9175'
0.00/0.01	c finished parsing
0.00/0.01	c
0.00/0.01	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
0.00/0.01	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
0.00/0.01	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
0.00/0.01	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
0.00/0.01	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
0.00/0.01	c --random=1 --spread=2000 --seed=0 --skip=25
0.00/0.01	c
0.00/0.01	c sizeof     vars[0] = 16   alignment = 0       0 MB
0.00/0.01	c sizeof     orgs[0] =  8   alignment = 0       0 MB
0.00/0.01	c sizeof     occs[0] =  8   alignment = 0       0 MB
0.00/0.01	c sizeof iirfs[0..1] =  8   alignment = 0       0 MB
0.00/0.01	c
0.00/0.01	c starting search after 0.0 seconds
0.00/0.01	c no decision limit
0.00/0.01	c
0.00/0.01	c       original/binary      fixed     eliminated      learned       agility
0.00/0.01	c   seconds        variables     equivalent    conflicts       height       MB
0.00/0.01	c
0.00/0.01	c *    0.0     9131    1195     32   345      0       0      0    0.0   0    1
0.03/0.06	c -    0.1     7717     859    172   541      0       0   1000    0.0   0    1
0.03/0.06	c -    0.1     7670     859    172   541      0       0   1000    0.0   0    1
0.03/0.06	c -    0.1     7623     859    172   541      0       0   1000    0.0   0    1
0.03/0.06	c -    0.1     6978     859    172   541      0       0   1000    0.0   0    1
0.03/0.07	c -    0.1     5911     644    172   541    215       0   1000    0.0   0    1
0.03/0.09	c s    0.1     4893     546    172   541    313       0      0    0.0   0    0
0.03/0.09	c l    0.1     4893     546    172   541    313       0   3224    0.0   0    0
0.09/0.10	c R    0.1     4905     546    172   541    313     100     98   10.9  13    0
0.09/0.10	c R    0.1     4906     546    172   541    313     200    198    9.4  23    1
0.09/0.12	c 1    0.1     4924     546    172   541    313     499    496    9.0  27    1
0.09/0.12	c
0.09/0.12	s SATISFIABLE
0.09/0.12	v 1 -2 -3 -4 -5 6 7
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0.09/0.12	v 1568 1569 1570 1571 1572
0.09/0.12	v 0
0.09/0.12	c
0.09/0.12	c 499 conflicts, 866 decisions, 1 random
0.09/0.12	c 0 iterations, 2 restarts, 1 skipped
0.09/0.12	c 0 enlarged, 518 shrunken, 4 rescored, 0 rebiased
0.09/0.12	c 1 simplifications, 0 reductions
0.09/0.12	c
0.09/0.12	c vars: 172 fixed, 541 equiv, 313 elim, 541 merged
0.09/0.12	c elim: 26169 resolutions, 1 phases, 1 rounds
0.09/0.12	c sbst: 54% substituted, 0.0% nots, 98.8% ands, 1.2% xors, 0.0% ites
0.09/0.12	c arty: 2.11 and 2.00 xor average arity
0.09/0.12	c prbe: 3888 probed, 1 phases, 2 rounds
0.09/0.12	c prbe: 136 failed, 4 lifted, 16 merged
0.09/0.12	c sccs: 0 non trivial, 0 fixed, 0 merged
0.09/0.12	c hash: 16 units, 525 merged
0.09/0.12	c mins: 5191 learned, 39% deleted, 0 strong, 14 depth
0.09/0.12	c subs: 729 forward, 1346 backward, 823 doms
0.09/0.12	c strs: 542 forward, 407 backward
0.09/0.12	c doms: 1057 dominators, 0 high, 0 low
0.09/0.12	c prps: 181298 propagations, 1.44 megaprops
0.09/0.12	c
0.09/0.12	c 0.1 seconds, 1 MB max, 0 MB recycled

Verifier Data

OK

Watcher Data

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1736748-1240813129/watcher-1736748-1240813129 -o /tmp/evaluation-result-1736748-1240813129/solver-1736748-1240813129 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/precosat HOME/instance-1736748-1240813129.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 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: 0.91 0.95 0.99 3/65 26384
/proc/meminfo: memFree=1529920/2055920 swapFree=4192812/4192956
[pid=26384] ppid=26382 vsize=1056 CPUtime=0
/proc/26384/stat : 26384 (precosat) R 26382 26384 26134 0 -1 4194304 184 0 0 0 0 0 0 0 18 0 1 0 109341290 1081344 169 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/26384/statm: 264 170 64 155 0 107 0

[startup+0.0410909 s]
/proc/loadavg: 0.91 0.95 0.99 3/65 26384
/proc/meminfo: memFree=1529920/2055920 swapFree=4192812/4192956
[pid=26384] ppid=26382 vsize=1712 CPUtime=0.03
/proc/26384/stat : 26384 (precosat) R 26382 26384 26134 0 -1 4194304 366 0 0 0 3 0 0 0 18 0 1 0 109341290 1753088 350 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/26384/statm: 428 350 79 155 0 271 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1712

[startup+0.102106 s]
/proc/loadavg: 0.91 0.95 0.99 3/65 26384
/proc/meminfo: memFree=1529920/2055920 swapFree=4192812/4192956
[pid=26384] ppid=26382 vsize=1844 CPUtime=0.09
/proc/26384/stat : 26384 (precosat) R 26382 26384 26134 0 -1 4194304 381 0 0 0 9 0 0 0 18 0 1 0 109341290 1888256 365 1992294400 134512640 135151029 4294956240 18446744073709551615 134574250 0 0 4096 17442 0 0 0 17 1 0 0
/proc/26384/statm: 461 365 79 155 0 304 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1844

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

Child status: 10
Real time (s): 0.127673
CPU time (s): 0.12598
CPU user time (s): 0.122981
CPU system time (s): 0.002999
CPU usage (%): 98.6739
Max. virtual memory (cumulated for all children) (KiB): 1844

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.122981
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 382
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= 6
involuntary context switches= 0

runsolver used 0.002999 second user time and 0.009998 second system time

The end

Launcher Data

Begin job on node54 at 2009-04-27 08:18:49
IDJOB=1736748
IDBENCH=71632
IDSOLVER=507
FILE ID=node54/1736748-1240813129
PBS_JOBID= 9187462
Free space on /tmp= 66284 MiB

SOLVER NAME= precosat 236
BENCH NAME= SAT09/CRAFTED/parity-games/instance_n4_i4_pp_ci_ce.cnf
COMMAND LINE= HOME/precosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1736748-1240813129/watcher-1736748-1240813129 -o /tmp/evaluation-result-1736748-1240813129/solver-1736748-1240813129 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/precosat HOME/instance-1736748-1240813129.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 91bf0f1cf73f97e8e8862cc30d68727a
RANDOM SEED=1539815205

node54.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		: 3000.234
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		: 3000.234
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:       1530336 kB
Buffers:         63204 kB
Cached:         372336 kB
SwapCached:          0 kB
Active:          45528 kB
Inactive:       405344 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1530336 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:             864 kB
Writeback:           0 kB
Mapped:          25048 kB
Slab:            60584 kB
Committed_AS:   433880 kB
PageTables:       1368 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66280 MiB
End job on node54 at 2009-04-27 08:18:49