Trace number 1775341

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 236UNSAT 1.88671 1.88669

General information on the benchmark

Namemanol-pipe-g6bi.cnf
MD5SUM276c05fafaa0b870834db9baaef6afca
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.876865
Satisfiable
(Un)Satisfiability was proved
Number of variables23891
Number of clauses69895
Sum of the clauses size163087
Maximum clause length3
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 246596
Number of clauses of size 323298
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

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-1775341-1241201625.cnf
0.00/0.00	c found header 'p cnf 23891 69895'
0.09/0.10	c finished parsing
0.09/0.10	c
0.09/0.10	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
0.09/0.10	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
0.09/0.10	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
0.09/0.10	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
0.09/0.10	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
0.09/0.10	c --random=1 --spread=2000 --seed=0 --skip=25
0.09/0.10	c
0.09/0.10	c sizeof     vars[0] = 16   alignment = 0       0 MB
0.09/0.10	c sizeof     orgs[0] =  8   alignment = 0       0 MB
0.09/0.10	c sizeof     occs[0] =  8   alignment = 0       0 MB
0.09/0.10	c sizeof iirfs[0..1] =  8   alignment = 0       0 MB
0.09/0.10	c
0.09/0.10	c starting search after 0.1 seconds
0.09/0.10	c no decision limit
0.09/0.11	c
0.09/0.11	c       original/binary      fixed     eliminated      learned       agility
0.09/0.11	c   seconds        variables     equivalent    conflicts       height       MB
0.09/0.11	c
0.09/0.11	c *    0.1    69894   23890      1     0      0       0      0    0.0   0    6
0.99/1.02	c s    1.0    27503    4312    573   670  18336       0      0    0.0   0    4
0.99/1.02	c l    1.0    27503    4312    573   670  18336       0  23013    0.0   0    4
0.99/1.04	c R    1.0    27527    4312    573   670  18336     100     99  274.6  14    5
0.99/1.05	c R    1.1    27529    4312    573   670  18336     200    199  248.2  14    5
1.09/1.13	c B    1.1    27616    4306    579   670  18336    1000    988  176.1  17    5
1.09/1.18	c R    1.2    27765    4305    579   671  18336    1550   1533  152.5  17    5
1.19/1.23	c B    1.2    27779    4305    579   671  18336    2000   1983  152.2  16    5
1.29/1.33	c R    1.3    27880    4305    579   671  18336    3156   3133  140.4  15    5
1.59/1.62	c R    1.6    28134    4294    582   679  18336    7161   7106  121.6  21    6
1.59/1.68	c B    1.7    28414    4281    585   689  18336    8004   7932  117.2  18    6
1.79/1.88	c 0    1.9    31570    4038    781   736  18336   11169  11028  103.2  15    6
1.79/1.88	c
1.79/1.88	s UNSATISFIABLE
1.79/1.88	c
1.79/1.88	c 11169 conflicts, 47678 decisions, 7 random
1.79/1.88	c 6 iterations, 58 restarts, 0 skipped
1.79/1.88	c 0 enlarged, 139 shrunken, 109 rescored, 6 rebiased
1.79/1.88	c 1 simplifications, 0 reductions
1.79/1.88	c
1.79/1.88	c vars: 781 fixed, 736 equiv, 18336 elim, 774 merged
1.79/1.88	c elim: 330171 resolutions, 1 phases, 1 rounds
1.79/1.88	c sbst: 92% substituted, 1.3% nots, 84.2% ands, 10.3% xors, 4.1% ites
1.79/1.88	c arty: 2.08 and 2.00 xor average arity
1.79/1.88	c prbe: 8219 probed, 1 phases, 0 rounds
1.79/1.88	c prbe: 17 failed, 500 lifted, 307 merged
1.79/1.88	c sccs: 4 non trivial, 0 fixed, 7 merged
1.79/1.88	c hash: 7 units, 460 merged
1.79/1.88	c mins: 186010 learned, 24% deleted, 27 strong, 13 depth
1.79/1.88	c subs: 162 forward, 170 backward, 3774 doms
1.79/1.88	c strs: 152 forward, 23 backward
1.79/1.88	c doms: 5490 dominators, 3460 high, 30 low
1.79/1.88	c prps: 1447111 propagations, 0.77 megaprops
1.79/1.88	c
1.79/1.88	c 1.9 seconds, 9 MB max, 4 MB recycled

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-1775341-1241201625/watcher-1775341-1241201625 -o /tmp/evaluation-result-1775341-1241201625/solver-1775341-1241201625 -C 10000 -W 12000 -M 1800 HOME/precosat HOME/instance-1775341-1241201625.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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 0.95 3/64 24808
/proc/meminfo: memFree=1061064/2055920 swapFree=4181276/4192956
[pid=24808] ppid=24806 vsize=1728 CPUtime=0
/proc/24808/stat : 24808 (precosat) R 24806 24808 24514 0 -1 4194304 337 0 0 0 0 0 0 0 18 0 1 0 148190265 1769472 322 1992294400 134512640 135151029 4294956240 18446744073709551615 134534376 0 0 4096 0 0 0 0 17 1 0 0
/proc/24808/statm: 432 323 59 155 0 275 0

[startup+0.08128 s]
/proc/loadavg: 1.00 1.00 0.95 3/64 24808
/proc/meminfo: memFree=1061064/2055920 swapFree=4181276/4192956
[pid=24808] ppid=24806 vsize=6656 CPUtime=0.07
/proc/24808/stat : 24808 (precosat) R 24806 24808 24514 0 -1 4194304 1644 0 0 0 7 0 0 0 18 0 1 0 148190265 6815744 1531 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/24808/statm: 1664 1531 63 155 0 1507 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 6656

[startup+0.10128 s]
/proc/loadavg: 1.00 1.00 0.95 3/64 24808
/proc/meminfo: memFree=1061064/2055920 swapFree=4181276/4192956
[pid=24808] ppid=24806 vsize=7580 CPUtime=0.09
/proc/24808/stat : 24808 (precosat) R 24806 24808 24514 0 -1 4194304 1887 0 0 0 9 0 0 0 18 0 1 0 148190265 7761920 1774 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/24808/statm: 1895 1775 63 155 0 1738 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7580

[startup+0.301302 s]
/proc/loadavg: 1.00 1.00 0.95 3/64 24808
/proc/meminfo: memFree=1061064/2055920 swapFree=4181276/4192956
[pid=24808] ppid=24806 vsize=8348 CPUtime=0.29
/proc/24808/stat : 24808 (precosat) R 24806 24808 24514 0 -1 4194304 2330 0 0 0 29 0 0 0 19 0 1 0 148190265 8548352 1993 1992294400 134512640 135151029 4294956240 18446744073709551615 134680430 0 0 4096 17442 0 0 0 17 1 0 0
/proc/24808/statm: 2087 1993 79 155 0 1930 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8348

[startup+0.701344 s]
/proc/loadavg: 1.00 1.00 0.95 3/64 24808
/proc/meminfo: memFree=1061064/2055920 swapFree=4181276/4192956
[pid=24808] ppid=24806 vsize=11568 CPUtime=0.69
/proc/24808/stat : 24808 (precosat) R 24806 24808 24514 0 -1 4194304 3224 0 0 0 68 1 0 0 23 0 1 0 148190265 11845632 2758 1992294400 134512640 135151029 4294956240 18446744073709551615 134573774 0 0 4096 17442 0 0 0 17 1 0 0
/proc/24808/statm: 2892 2758 79 155 0 2735 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 11568

[startup+1.50143 s]
/proc/loadavg: 1.00 1.00 0.95 2/65 24809
/proc/meminfo: memFree=1050176/2055920 swapFree=4181276/4192956
[pid=24808] ppid=24806 vsize=11568 CPUtime=1.49
/proc/24808/stat : 24808 (precosat) R 24806 24808 24514 0 -1 4194304 3335 0 0 0 148 1 0 0 25 0 1 0 148190265 11845632 2740 1992294400 134512640 135151029 4294956240 18446744073709551615 134574623 0 0 4096 17442 0 0 0 17 1 0 0
/proc/24808/statm: 2892 2740 79 155 0 2735 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 11568

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

[startup+1.70145 s]
/proc/loadavg: 1.00 1.00 0.95 2/65 24809
/proc/meminfo: memFree=1050176/2055920 swapFree=4181276/4192956
[pid=24808] ppid=24806 vsize=11568 CPUtime=1.69
/proc/24808/stat : 24808 (precosat) R 24806 24808 24514 0 -1 4194304 3335 0 0 0 168 1 0 0 25 0 1 0 148190265 11845632 2740 1992294400 134512640 135151029 4294956240 18446744073709551615 134554814 0 0 4096 17442 0 0 0 17 1 0 0
/proc/24808/statm: 2892 2740 79 155 0 2735 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 11568

[startup+1.80146 s]
/proc/loadavg: 1.00 1.00 0.95 2/65 24809
/proc/meminfo: memFree=1050176/2055920 swapFree=4181276/4192956
[pid=24808] ppid=24806 vsize=11568 CPUtime=1.79
/proc/24808/stat : 24808 (precosat) R 24806 24808 24514 0 -1 4194304 3335 0 0 0 178 1 0 0 25 0 1 0 148190265 11845632 2740 1992294400 134512640 135151029 4294956240 18446744073709551615 134554578 0 0 4096 17442 0 0 0 17 1 0 0
/proc/24808/statm: 2892 2740 79 155 0 2735 0
Current children cumulated CPU time (s) 1.79
Current children cumulated vsize (KiB) 11568

Child status: 20
Real time (s): 1.88669
CPU time (s): 1.88671
CPU user time (s): 1.86871
CPU system time (s): 0.017997
CPU usage (%): 100.001
Max. virtual memory (cumulated for all children) (KiB): 12084

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.86871
system time used= 0.017997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3336
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= 3

runsolver used 0.001999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node47 at 2009-05-01 20:13:45
IDJOB=1775341
IDBENCH=71734
IDSOLVER=607
FILE ID=node47/1775341-1241201625
PBS_JOBID= 9224658
Free space on /tmp= 66412 MiB

SOLVER NAME= precosat 236
BENCH NAME= SAT_RACE06/manol-pipe-g6bi.cnf
COMMAND LINE= HOME/precosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1775341-1241201625/watcher-1775341-1241201625 -o /tmp/evaluation-result-1775341-1241201625/solver-1775341-1241201625 -C 10000 -W 12000 -M 1800  HOME/precosat HOME/instance-1775341-1241201625.cnf

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

MD5SUM BENCH= 276c05fafaa0b870834db9baaef6afca
RANDOM SEED=936031356

node47.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		: 3000.212
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		: 3000.212
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:       1061544 kB
Buffers:         75016 kB
Cached:         811520 kB
SwapCached:       5488 kB
Active:          47764 kB
Inactive:       846704 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1061544 kB
SwapTotal:     4192956 kB
SwapFree:      4181276 kB
Dirty:            1876 kB
Writeback:           0 kB
Mapped:          13600 kB
Slab:            85908 kB
Committed_AS:   714092 kB
PageTables:       1452 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= 66412 MiB
End job on node47 at 2009-05-01 20:13:47