Trace number 1723356

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 2.49962 2.50467

General information on the benchmark

Nameeen-tip-uns-nusmv-t5.B.cnf
MD5SUM5a0032960b52c5fb367771f030675e6c
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.13982
Satisfiable
(Un)Satisfiability was proved
Number of variables59265
Number of clauses170983
Sum of the clauses size413505
Maximum clause length23
Minimum clause length1
Number of clauses of size 123
Number of clauses of size 299418
Number of clauses of size 371541
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 51

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-1723356-1240685428.cnf
0.00/0.00	c found header 'p cnf 59265 170983'
0.19/0.26	c finished parsing
0.19/0.26	c
0.19/0.26	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
0.19/0.26	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
0.19/0.26	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
0.19/0.26	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
0.19/0.26	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
0.19/0.26	c --random=1 --spread=2000 --seed=0 --skip=25
0.19/0.26	c
0.19/0.26	c sizeof     vars[0] = 16   alignment = 0       1 MB
0.19/0.26	c sizeof     orgs[0] =  8   alignment = 0       0 MB
0.19/0.26	c sizeof     occs[0] =  8   alignment = 0       0 MB
0.19/0.26	c sizeof iirfs[0..1] =  8   alignment = 0       0 MB
0.19/0.26	c
0.19/0.26	c starting search after 0.3 seconds
0.19/0.26	c no decision limit
0.19/0.27	c
0.19/0.27	c       original/binary      fixed     eliminated      learned       agility
0.19/0.27	c   seconds        variables     equivalent    conflicts       height       MB
0.19/0.27	c
0.19/0.27	c *    0.3   170845   59196     69     0      0       0      0    0.0   0   15
1.79/2.17	c s    2.2    47285    7569  12398  1674  37624       0      0    0.0   0    9
2.04/2.98	c l    2.2    47285    7569  12398  1674  37624       0  32468    0.0   0    9
2.04/2.98	c R    2.2    47491    7569  12398  1674  37624     100     98  246.0  11   10
2.04/2.98	c R    2.2    47929    7569  12398  1674  37624     201    196  202.9   7   10
2.04/2.98	c 0    2.5    49389    6533  13399  1709  37624     965    934   93.7  13   10
2.04/2.98	c
2.04/2.98	s UNSATISFIABLE
2.04/2.98	c
2.04/2.98	c 965 conflicts, 3586 decisions, 2 random
2.04/2.98	c 4 iterations, 6 restarts, 0 skipped
2.04/2.98	c 0 enlarged, 1511 shrunken, 9 rescored, 0 rebiased
2.04/2.98	c 1 simplifications, 0 reductions
2.04/2.98	c
2.04/2.98	c vars: 13399 fixed, 1709 equiv, 37624 elim, 1792 merged
2.04/2.98	c elim: 538780 resolutions, 1 phases, 1 rounds
2.04/2.98	c sbst: 85% substituted, 12.2% nots, 80.1% ands, 1.9% xors, 5.8% ites
2.04/2.98	c arty: 2.13 and 2.00 xor average arity
2.04/2.98	c prbe: 3792 probed, 1 phases, 0 rounds
2.04/2.98	c prbe: 60 failed, 1449 lifted, 495 merged
2.04/2.98	c sccs: 12 non trivial, 0 fixed, 14 merged
2.04/2.98	c hash: 7 units, 1283 merged
2.04/2.98	c mins: 10453 learned, 34% deleted, 9 strong, 24 depth
2.04/2.98	c subs: 3524 forward, 2299 backward, 2920 doms
2.04/2.98	c strs: 4215 forward, 1797 backward
2.04/2.98	c doms: 10534 dominators, 953 high, 2 low
2.04/2.98	c prps: 1349397 propagations, 0.54 megaprops
2.04/2.98	c
2.04/2.98	c 2.5 seconds, 19 MB max, 10 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-1723356-1240685428/watcher-1723356-1240685428 -o /tmp/evaluation-result-1723356-1240685428/solver-1723356-1240685428 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/precosat HOME/instance-1723356-1240685428.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: 1.00 1.00 1.00 3/64 19797
/proc/meminfo: memFree=1621432/2055920 swapFree=4180280/4192956
[pid=19797] ppid=19795 vsize=3108 CPUtime=0
/proc/19797/stat : 19797 (precosat) R 19795 19797 19452 0 -1 4194304 586 0 0 0 0 0 0 0 18 0 1 0 96576113 3182592 571 1992294400 134512640 135151029 4294956224 18446744073709551615 134534335 0 0 4096 0 0 0 0 17 1 0 0
/proc/19797/statm: 777 572 59 155 0 620 0

[startup+0.0978521 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 19797
/proc/meminfo: memFree=1621432/2055920 swapFree=4180280/4192956
[pid=19797] ppid=19795 vsize=9768 CPUtime=0.09
/proc/19797/stat : 19797 (precosat) R 19795 19797 19452 0 -1 4194304 2441 0 0 0 8 1 0 0 18 0 1 0 96576113 10002432 2328 1992294400 134512640 135151029 4294956224 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/19797/statm: 2442 2329 64 155 0 2285 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 9768

[startup+0.101852 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 19797
/proc/meminfo: memFree=1621432/2055920 swapFree=4180280/4192956
[pid=19797] ppid=19795 vsize=9900 CPUtime=0.09
/proc/19797/stat : 19797 (precosat) R 19795 19797 19452 0 -1 4194304 2480 0 0 0 8 1 0 0 18 0 1 0 96576113 10137600 2367 1992294400 134512640 135151029 4294956224 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/19797/statm: 2475 2368 64 155 0 2318 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 9900

[startup+0.301891 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 19797
/proc/meminfo: memFree=1621432/2055920 swapFree=4180280/4192956
[pid=19797] ppid=19795 vsize=18560 CPUtime=0.29
/proc/19797/stat : 19797 (precosat) R 19795 19797 19452 0 -1 4194304 4787 0 0 0 27 2 0 0 19 0 1 0 96576113 19005440 4544 1992294400 134512640 135151029 4294956224 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/19797/statm: 4640 4544 79 155 0 4483 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 18560

[startup+0.701968 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 19797
/proc/meminfo: memFree=1621432/2055920 swapFree=4180280/4192956
[pid=19797] ppid=19795 vsize=19552 CPUtime=0.69
/proc/19797/stat : 19797 (precosat) R 19795 19797 19452 0 -1 4194304 5497 0 0 0 67 2 0 0 22 0 1 0 96576113 20021248 4765 1992294400 134512640 135151029 4294956224 18446744073709551615 134680430 0 0 4096 17442 0 0 0 17 1 0 0
/proc/19797/statm: 4888 4765 79 155 0 4731 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 19552

[startup+1.50112 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 19798
/proc/meminfo: memFree=1598512/2055920 swapFree=4180280/4192956
[pid=19797] ppid=19795 vsize=24808 CPUtime=1.49
/proc/19797/stat : 19797 (precosat) R 19795 19797 19452 0 -1 4194304 7366 0 0 0 145 4 0 0 25 0 1 0 96576113 25403392 5959 1992294400 134512640 135151029 4294956224 18446744073709551615 134572823 0 0 4096 17442 0 0 0 17 1 0 0
/proc/19797/statm: 6202 5959 79 155 0 6045 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 24808

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

[startup+1.94473 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 19798
/proc/meminfo: memFree=1598512/2055920 swapFree=4180280/4192956
[pid=19797] ppid=19795 vsize=22024 CPUtime=2.04
/proc/19797/stat : 19797 (precosat) R 19795 19797 19452 0 -1 4194304 7450 0 0 0 200 4 0 0 25 0 1 0 96576113 22552576 5347 1992294400 134512640 135151029 4294956224 18446744073709551615 134678810 0 0 4096 17442 0 0 0 17 1 0 0
/proc/19797/statm: 5249 5090 79 155 0 5092 0
Current children cumulated CPU time (s) 2.04
Current children cumulated vsize (KiB) 22024

Child status: 20
Real time (s): 2.50467
CPU time (s): 2.49962
CPU user time (s): 2.45163
CPU system time (s): 0.047992
CPU usage (%): 99.7983
Max. virtual memory (cumulated for all children) (KiB): 24808

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.45163
system time used= 0.047992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7451
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= 11

runsolver used 0.018997 second user time and 0.047992 second system time

The end

Launcher Data 

Begin job on node28 at 2009-04-25 20:50:28
IDJOB=1723356
IDBENCH=71697
IDSOLVER=507
FILE ID=node28/1723356-1240685428
PBS_JOBID= 9186659
Free space on /tmp= 66240 MiB

SOLVER NAME= precosat 236
BENCH NAME= SAT_RACE06/een-tip-uns-nusmv-t5.B.cnf
COMMAND LINE= HOME/precosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1723356-1240685428/watcher-1723356-1240685428 -o /tmp/evaluation-result-1723356-1240685428/solver-1723356-1240685428 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/precosat HOME/instance-1723356-1240685428.cnf

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

MD5SUM BENCH= 5a0032960b52c5fb367771f030675e6c
RANDOM SEED=2028850608

node28.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		: 3000.261
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		: 3000.261
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:       1621848 kB
Buffers:         38816 kB
Cached:         340752 kB
SwapCached:       5856 kB
Active:         151348 kB
Inactive:       236652 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1621848 kB
SwapTotal:     4192956 kB
SwapFree:      4180280 kB
Dirty:            3756 kB
Writeback:           0 kB
Mapped:          13720 kB
Slab:            31908 kB
Committed_AS:   395788 kB
PageTables:       1420 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= 66240 MiB
End job on node28 at 2009-04-25 20:50:31