Trace number 1724136

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 29.0966 29.1102

General information on the benchmark

Namesimon-s03-fifo8-300.cnf
MD5SUMbc88ff447c824a634465ac9483a47d5c
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark28.2557
Satisfiable
(Un)Satisfiability was proved
Number of variables194762
Number of clauses530713
Sum of the clauses size1200865
Maximum clause length11
Minimum clause length1
Number of clauses of size 14539
Number of clauses of size 2407666
Number of clauses of size 3101726
Number of clauses of size 413487
Number of clauses of size 51199
Number of clauses of size over 52096

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-1724136-1240692844.cnf
0.00/0.00	c found header 'p cnf 194762 530713'
1.48/1.58	c finished parsing
1.48/1.58	c
1.48/1.58	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
1.48/1.58	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
1.48/1.58	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
1.48/1.58	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
1.48/1.58	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
1.48/1.58	c --random=1 --spread=2000 --seed=0 --skip=25
1.48/1.58	c
1.48/1.58	c sizeof     vars[0] = 16   alignment = 0       3 MB
1.48/1.58	c sizeof     orgs[0] =  8   alignment = 0       1 MB
1.48/1.58	c sizeof     occs[0] =  8   alignment = 0       1 MB
1.48/1.58	c sizeof iirfs[0..1] =  8   alignment = 0       1 MB
1.48/1.58	c
1.48/1.58	c starting search after 1.6 seconds
1.48/1.58	c no decision limit
1.59/1.65	c
1.59/1.65	c       original/binary      fixed     eliminated      learned       agility
1.59/1.65	c   seconds        variables     equivalent    conflicts       height       MB
1.59/1.65	c
1.59/1.65	c *    1.6   511231  119266  11864 63632      0       0      0    0.0   0   46
6.99/7.03	c s    7.0   100127   17232  68079 57555  51896       0      0    0.0   0   26
6.99/7.03	c l    7.0   100127   17232  68079 57555  51896       0  82691    0.0   0   26
6.99/7.07	c R    7.1   100493   17204  68092 57570  51896     146    132  255.2  10   26
6.99/7.09	c R    7.1   100625   17204  68092 57570  51896     246    224  229.1   9   26
7.19/7.22	c R    7.2   101175   17190  68092 57584  51896     852    805  292.1  13   27
7.29/7.30	c B    7.3   101404   17185  68092 57589  51896    1000    948  298.9   7   27
7.49/7.54	c B    7.5   102005   17166  68092 57608  51896    2002   1918  322.4   9   27
10.39/10.45	c B   10.4   165208   15332  68768 58766  51896    8004   7699  266.7  18   32
10.59/10.65	c R   10.6   166628   15322  68768 58776  51896    8496   8178  264.8  13   32
12.18/12.26	c s   12.3   148042   15150  68901 58815  51896   12098  10843  247.2  14   30
12.18/12.26	c -   12.3   148042   15150  68901 58815  51896   12098  76076  247.2  14   30
16.78/16.86	c B   16.9   204412   14541  69255 59070  51896   24006  22514  220.2  18   35
22.28/22.34	c s   22.3   148611   13130  69749 59183  52700   33338  27137  206.9  20   31
22.28/22.34	c -   22.3   148611   13130  69749 59183  52700   33338  67708  206.9  20   31
29.07/29.10	c 0   29.1   264559   11444  71017 59601  52700   48468  41987  187.0  16   41
29.07/29.10	c
29.07/29.10	s UNSATISFIABLE
29.07/29.10	c
29.07/29.10	c 48468 conflicts, 495914 decisions, 154 random
29.07/29.10	c 109 iterations, 281 restarts, 2 skipped
29.07/29.10	c 0 enlarged, 6780 shrunken, 475 rescored, 25 rebiased
29.07/29.10	c 3 simplifications, 0 reductions
29.07/29.10	c
29.07/29.10	c vars: 71017 fixed, 59601 equiv, 52700 elim, 87928 merged
29.07/29.10	c elim: 1382828 resolutions, 2 phases, 2 rounds
29.07/29.10	c sbst: 98% substituted, 20.5% nots, 76.9% ands, 2.2% xors, 0.5% ites
29.07/29.10	c arty: 2.24 and 2.00 xor average arity
29.07/29.10	c prbe: 175097 probed, 13 phases, 5 rounds
29.07/29.10	c prbe: 661 failed, 933 lifted, 11353 merged
29.07/29.10	c sccs: 1742 non trivial, 0 fixed, 4705 merged
29.07/29.10	c hash: 159 units, 71870 merged
29.07/29.10	c mins: 388107 learned, 15% deleted, 239 strong, 50 depth
29.07/29.10	c subs: 9210 forward, 13925 backward, 102662 doms
29.07/29.10	c strs: 2909 forward, 304 backward
29.07/29.10	c doms: 130861 dominators, 95522 high, 175 low
29.07/29.10	c prps: 15682096 propagations, 0.54 megaprops
29.07/29.10	c
29.07/29.10	c 29.1 seconds, 52 MB max, 27 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-1724136-1240692844/watcher-1724136-1240692844 -o /tmp/evaluation-result-1724136-1240692844/solver-1724136-1240692844 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/precosat HOME/instance-1724136-1240692844.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 1.10 3/65 19216
/proc/meminfo: memFree=1610344/2055920 swapFree=4181424/4192956
[pid=19216] ppid=19214 vsize=5356 CPUtime=0
/proc/19216/stat : 19216 (precosat) R 19214 19216 19118 0 -1 4194304 964 0 0 0 0 0 0 0 20 0 1 0 97314943 5484544 949 1992294400 134512640 135151029 4294956224 18446744073709551615 134697845 0 0 4096 0 0 0 0 17 1 0 0
/proc/19216/statm: 1339 957 58 155 0 1182 0

[startup+0.0457579 s]
/proc/loadavg: 1.00 1.00 1.10 3/65 19216
/proc/meminfo: memFree=1610344/2055920 swapFree=4181424/4192956
[pid=19216] ppid=19214 vsize=15908 CPUtime=0.03
/proc/19216/stat : 19216 (precosat) R 19214 19216 19118 0 -1 4194304 3249 0 0 0 3 0 0 0 20 0 1 0 97314943 16289792 3234 1992294400 134512640 135151029 4294956224 18446744073709551615 134697845 0 0 4096 0 0 0 0 17 1 0 0
/proc/19216/statm: 3977 3242 59 155 0 3820 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 15908

[startup+0.101766 s]
/proc/loadavg: 1.00 1.00 1.10 3/65 19216
/proc/meminfo: memFree=1610344/2055920 swapFree=4181424/4192956
[pid=19216] ppid=19214 vsize=19408 CPUtime=0.09
/proc/19216/stat : 19216 (precosat) R 19214 19216 19118 0 -1 4194304 4714 0 0 0 8 1 0 0 20 0 1 0 97314943 19873792 4666 1992294400 134512640 135151029 4294956224 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/19216/statm: 4852 4666 64 155 0 4695 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 19408

[startup+0.301805 s]
/proc/loadavg: 1.00 1.00 1.10 3/65 19216
/proc/meminfo: memFree=1610344/2055920 swapFree=4181424/4192956
[pid=19216] ppid=19214 vsize=25456 CPUtime=0.29
/proc/19216/stat : 19216 (precosat) R 19214 19216 19118 0 -1 4194304 6422 0 0 0 27 2 0 0 22 0 1 0 97314943 26066944 6180 1992294400 134512640 135151029 4294956224 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/19216/statm: 6364 6180 64 155 0 6207 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 25456

[startup+0.701884 s]
/proc/loadavg: 1.00 1.00 1.10 3/65 19216
/proc/meminfo: memFree=1610344/2055920 swapFree=4181424/4192956
[pid=19216] ppid=19214 vsize=35324 CPUtime=0.69
/proc/19216/stat : 19216 (precosat) R 19214 19216 19118 0 -1 4194304 9140 0 0 0 66 3 0 0 25 0 1 0 97314943 36171776 8641 1992294400 134512640 135151029 4294956224 18446744073709551615 134682423 0 0 4096 17442 0 0 0 17 1 0 0
/proc/19216/statm: 8831 8641 64 155 0 8674 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 35324

[startup+1.50104 s]
/proc/loadavg: 1.00 1.00 1.10 2/66 19217
/proc/meminfo: memFree=1565344/2055920 swapFree=4181424/4192956
[pid=19216] ppid=19214 vsize=53128 CPUtime=1.48
/proc/19216/stat : 19216 (precosat) R 19214 19216 19118 0 -1 4194304 14108 0 0 0 143 5 0 0 25 0 1 0 97314943 54403072 13096 1992294400 134512640 135151029 4294956224 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/19216/statm: 13282 13096 64 155 0 13125 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 53128

[startup+3.10136 s]
/proc/loadavg: 1.00 1.00 1.10 2/66 19217
/proc/meminfo: memFree=1552288/2055920 swapFree=4181424/4192956
[pid=19216] ppid=19214 vsize=55188 CPUtime=3.09
/proc/19216/stat : 19216 (precosat) R 19214 19216 19118 0 -1 4194304 16317 0 0 0 302 7 0 0 25 0 1 0 97314943 56512512 13518 1992294400 134512640 135151029 4294956224 18446744073709551615 134680430 0 0 4096 17442 0 0 0 17 1 0 0
/proc/19216/statm: 13797 13518 79 155 0 13640 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 55188

[startup+6.30198 s]
/proc/loadavg: 1.16 1.03 1.11 2/66 19217
/proc/meminfo: memFree=1543520/2055920 swapFree=4181424/4192956
[pid=19216] ppid=19214 vsize=69100 CPUtime=6.28
/proc/19216/stat : 19216 (precosat) R 19214 19216 19118 0 -1 4194304 20809 0 0 0 619 9 0 0 25 0 1 0 97314943 70758400 16725 1992294400 134512640 135151029 4294956224 18446744073709551615 134548115 0 0 4096 17442 0 0 0 17 1 0 0
/proc/19216/statm: 17275 16725 79 155 0 17118 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 69100

[startup+12.7022 s]
/proc/loadavg: 1.31 1.07 1.12 2/66 19217
/proc/meminfo: memFree=1553184/2055920 swapFree=4181424/4192956
[pid=19216] ppid=19214 vsize=58428 CPUtime=12.68
/proc/19216/stat : 19216 (precosat) R 19214 19216 19118 0 -1 4194304 22096 0 0 0 1258 10 0 0 25 0 1 0 97314943 59830272 14068 1992294400 134512640 135151029 4294956224 18446744073709551615 134554809 0 0 4096 17442 0 0 0 17 1 0 0
/proc/19216/statm: 14607 14068 79 155 0 14450 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 58428

[startup+25.5018 s]
/proc/loadavg: 1.24 1.06 1.12 2/66 19217
/proc/meminfo: memFree=1553184/2055920 swapFree=4181424/4192956
[pid=19216] ppid=19214 vsize=58944 CPUtime=25.48
/proc/19216/stat : 19216 (precosat) R 19214 19216 19118 0 -1 4194304 26693 0 0 0 2535 13 0 0 25 0 1 0 97314943 60358656 14206 1992294400 134512640 135151029 4294956224 18446744073709551615 134554814 0 0 4096 17442 0 0 0 17 1 0 0
/proc/19216/statm: 14736 14206 79 155 0 14579 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 58944

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

[startup+27.1011 s]
/proc/loadavg: 1.24 1.06 1.12 2/66 19217
/proc/meminfo: memFree=1553248/2055920 swapFree=4181424/4192956
[pid=19216] ppid=19214 vsize=58944 CPUtime=27.07
/proc/19216/stat : 19216 (precosat) R 19214 19216 19118 0 -1 4194304 26693 0 0 0 2694 13 0 0 25 0 1 0 97314943 60358656 14206 1992294400 134512640 135151029 4294956224 18446744073709551615 134554578 0 0 4096 17442 0 0 0 17 1 0 0
/proc/19216/statm: 14736 14206 79 155 0 14579 0
Current children cumulated CPU time (s) 27.07
Current children cumulated vsize (KiB) 58944

[startup+27.9022 s]
/proc/loadavg: 1.24 1.06 1.12 2/66 19217
/proc/meminfo: memFree=1551392/2055920 swapFree=4181424/4192956
[pid=19216] ppid=19214 vsize=59968 CPUtime=27.87
/proc/19216/stat : 19216 (precosat) R 19214 19216 19118 0 -1 4194304 27206 0 0 0 2774 13 0 0 25 0 1 0 97314943 61407232 14462 1992294400 134512640 135151029 4294956224 18446744073709551615 134554594 0 0 4096 17442 0 0 0 17 1 0 0
/proc/19216/statm: 14992 14462 79 155 0 14835 0
Current children cumulated CPU time (s) 27.87
Current children cumulated vsize (KiB) 59968

[startup+28.7014 s]
/proc/loadavg: 1.24 1.06 1.12 2/66 19217
/proc/meminfo: memFree=1552224/2055920 swapFree=4181424/4192956
[pid=19216] ppid=19214 vsize=59968 CPUtime=28.67
/proc/19216/stat : 19216 (precosat) R 19214 19216 19118 0 -1 4194304 27206 0 0 0 2854 13 0 0 25 0 1 0 97314943 61407232 14462 1992294400 134512640 135151029 4294956224 18446744073709551615 134554578 0 0 4096 17442 0 0 0 17 1 0 0
/proc/19216/statm: 14992 14462 79 155 0 14835 0
Current children cumulated CPU time (s) 28.67
Current children cumulated vsize (KiB) 59968

[startup+29.1015 s]
/proc/loadavg: 1.24 1.06 1.12 2/66 19217
/proc/meminfo: memFree=1552224/2055920 swapFree=4181424/4192956
[pid=19216] ppid=19214 vsize=59968 CPUtime=29.07
/proc/19216/stat : 19216 (precosat) R 19214 19216 19118 0 -1 4194304 27206 0 0 0 2894 13 0 0 25 0 1 0 97314943 61407232 14462 1992294400 134512640 135151029 4294956224 18446744073709551615 134703854 0 0 4096 17442 0 0 0 17 1 0 0
/proc/19216/statm: 14992 14462 79 155 0 14835 0
Current children cumulated CPU time (s) 29.07
Current children cumulated vsize (KiB) 59968

Child status: 20
Real time (s): 29.1102
CPU time (s): 29.0966
CPU user time (s): 28.9476
CPU system time (s): 0.148977
CPU usage (%): 99.953
Max. virtual memory (cumulated for all children) (KiB): 69100

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 28.9476
system time used= 0.148977
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 27207
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= 34

runsolver used 0.031995 second user time and 0.081987 second system time

The end

Launcher Data 

Begin job on node77 at 2009-04-25 22:54:06
IDJOB=1724136
IDBENCH=71758
IDSOLVER=507
FILE ID=node77/1724136-1240692844
PBS_JOBID= 9186732
Free space on /tmp= 66204 MiB

SOLVER NAME= precosat 236
BENCH NAME= SAT_RACE06/simon-s03-fifo8-300.cnf
COMMAND LINE= HOME/precosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1724136-1240692844/watcher-1724136-1240692844 -o /tmp/evaluation-result-1724136-1240692844/solver-1724136-1240692844 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/precosat HOME/instance-1724136-1240692844.cnf

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

MD5SUM BENCH= bc88ff447c824a634465ac9483a47d5c
RANDOM SEED=248357812

node77.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		: 3000.270
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		: 3000.270
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1610760 kB
Buffers:         40756 kB
Cached:         332660 kB
SwapCached:       5412 kB
Active:         109828 kB
Inactive:       271448 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1610760 kB
SwapTotal:     4192956 kB
SwapFree:      4181424 kB
Dirty:            9880 kB
Writeback:           0 kB
Mapped:          13448 kB
Slab:            49788 kB
Committed_AS:   426588 kB
PageTables:       1372 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= 66204 MiB
End job on node77 at 2009-04-25 22:54:35