Trace number 427018

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, and are wall clock time (not CPU 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
SAT7 2007-02-08UNSAT 84.9401 84.9749

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S1501024241-13-UNSAT.cnf
MD5SUMc3f41406395e9f4a8725889bf7cf43c6
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.98539
Satisfiable
(Un)Satisfiability was proved
Number of variables629
Number of clauses2280
Sum of the clauses size6612
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2228
Number of clauses of size 32052
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.01	c Starting solver ...
0.00/0.01	c Restarting after 100 conflicts
0.00/0.02	c Restarting after 250 conflicts
0.00/0.04	c Restarting after 475 conflicts
0.04/0.07	c Restarting after 813 conflicts
0.09/0.10	c Restarting after 1319 conflicts
0.09/0.16	c Restarting after 2078 conflicts
0.19/0.26	c Restarting after 3218 conflicts
0.39/0.40	c Restarting after 4926 conflicts
0.59/0.62	c Restarting after 7488 conflicts
0.89/0.96	c Restarting after 11332 conflicts
1.39/1.47	c Restarting after 17098 conflicts
2.20/2.25	c Restarting after 25747 conflicts
3.39/3.45	c Restarting after 38721 conflicts
5.29/5.32	c Restarting after 58184 conflicts
8.09/8.17	c Restarting after 87376 conflicts
12.49/12.56	c Restarting after 131166 conflicts
19.39/19.40	c Restarting after 196851 conflicts
29.48/29.57	c Restarting after 295378 conflicts
45.57/45.69	c Restarting after 443167 conflicts
70.16/70.22	c Restarting after 664850 conflicts
84.86/84.97	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node38/watcher-427018-1177831475 -o ROOT/results/node38/solver-427018-1177831475 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/427018-1177831475/sat7_bin /tmp/evaluation/427018-1177831475/instance-427018-1177831475.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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: 1.03 0.97 0.98 3/77 20401
/proc/meminfo: memFree=1481344/2055920 swapFree=4159768/4192956
[pid=20401] ppid=20399 vsize=1216 CPUtime=0
/proc/20401/stat : 20401 (sat7_bin) R 20399 20401 19018 0 -1 4194304 146 0 0 0 0 0 0 0 18 0 1 0 215314177 1245184 130 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134615210 0 0 4096 0 0 0 0 17 1 0 0
/proc/20401/statm: 304 130 87 220 0 81 0

[startup+0.045393 s]
/proc/loadavg: 1.03 0.97 0.98 3/77 20401
/proc/meminfo: memFree=1481344/2055920 swapFree=4159768/4192956
[pid=20401] ppid=20399 vsize=1612 CPUtime=0.04
/proc/20401/stat : 20401 (sat7_bin) R 20399 20401 19018 0 -1 4194304 201 0 0 0 4 0 0 0 18 0 1 0 215314177 1650688 185 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134579264 0 0 4096 0 0 0 0 17 1 0 0
/proc/20401/statm: 403 185 95 220 0 180 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1612

[startup+0.101404 s]
/proc/loadavg: 1.03 0.97 0.98 3/77 20401
/proc/meminfo: memFree=1481344/2055920 swapFree=4159768/4192956
[pid=20401] ppid=20399 vsize=1612 CPUtime=0.09
/proc/20401/stat : 20401 (sat7_bin) R 20399 20401 19018 0 -1 4194304 224 0 0 0 9 0 0 0 18 0 1 0 215314177 1650688 208 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134533270 0 0 4096 0 0 0 0 17 1 0 0
/proc/20401/statm: 403 208 95 220 0 180 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1612

[startup+0.301442 s]
/proc/loadavg: 1.03 0.97 0.98 3/77 20401
/proc/meminfo: memFree=1481344/2055920 swapFree=4159768/4192956
[pid=20401] ppid=20399 vsize=1612 CPUtime=0.29
/proc/20401/stat : 20401 (sat7_bin) R 20399 20401 19018 0 -1 4194304 242 0 0 0 29 0 0 0 19 0 1 0 215314177 1650688 226 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532333 0 0 4096 0 0 0 0 17 1 0 0
/proc/20401/statm: 403 226 95 220 0 180 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1612

[startup+0.70152 s]
/proc/loadavg: 1.03 0.97 0.98 3/77 20401
/proc/meminfo: memFree=1481344/2055920 swapFree=4159768/4192956
[pid=20401] ppid=20399 vsize=2128 CPUtime=0.69
/proc/20401/stat : 20401 (sat7_bin) R 20399 20401 19018 0 -1 4194304 265 0 0 0 69 0 0 0 22 0 1 0 215314177 2179072 249 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134531413 0 0 4096 0 0 0 0 17 1 0 0
/proc/20401/statm: 532 249 95 220 0 309 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2128

[startup+1.50167 s]
/proc/loadavg: 1.03 0.97 0.98 2/78 20402
/proc/meminfo: memFree=1480632/2055920 swapFree=4159768/4192956
[pid=20401] ppid=20399 vsize=2128 CPUtime=1.49
/proc/20401/stat : 20401 (sat7_bin) R 20399 20401 19018 0 -1 4194304 288 0 0 0 149 0 0 0 25 0 1 0 215314177 2179072 272 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532694 0 0 4096 0 0 0 0 17 1 0 0
/proc/20401/statm: 532 272 95 220 0 309 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2128

[startup+3.10198 s]
/proc/loadavg: 1.03 0.97 0.98 2/78 20402
/proc/meminfo: memFree=1480376/2055920 swapFree=4159768/4192956
[pid=20401] ppid=20399 vsize=2128 CPUtime=3.09
/proc/20401/stat : 20401 (sat7_bin) R 20399 20401 19018 0 -1 4194304 315 0 0 0 309 0 0 0 25 0 1 0 215314177 2179072 299 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532685 0 0 4096 0 0 0 0 17 1 0 0
/proc/20401/statm: 532 299 95 220 0 309 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2128

[startup+6.3016 s]
/proc/loadavg: 1.03 0.97 0.98 2/78 20402
/proc/meminfo: memFree=1480184/2055920 swapFree=4159768/4192956
[pid=20401] ppid=20399 vsize=2128 CPUtime=6.29
/proc/20401/stat : 20401 (sat7_bin) R 20399 20401 19018 0 -1 4194304 355 0 0 0 629 0 0 0 25 0 1 0 215314177 2179072 339 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134533382 0 0 4096 0 0 0 0 17 1 0 0
/proc/20401/statm: 532 339 95 220 0 309 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2128

[startup+12.7028 s]
/proc/loadavg: 1.03 0.97 0.98 2/78 20402
/proc/meminfo: memFree=1479864/2055920 swapFree=4159768/4192956
[pid=20401] ppid=20399 vsize=3156 CPUtime=12.69
/proc/20401/stat : 20401 (sat7_bin) R 20399 20401 19018 0 -1 4194304 413 0 0 0 1269 0 0 0 25 0 1 0 215314177 3231744 397 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532469 0 0 4096 0 0 0 0 17 1 0 0
/proc/20401/statm: 789 397 95 220 0 566 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3156

[startup+25.5013 s]
/proc/loadavg: 1.02 0.97 0.98 2/78 20402
/proc/meminfo: memFree=1479544/2055920 swapFree=4159768/4192956
[pid=20401] ppid=20399 vsize=3288 CPUtime=25.48
/proc/20401/stat : 20401 (sat7_bin) R 20399 20401 19018 0 -1 4194304 485 0 0 0 2548 0 0 0 25 0 1 0 215314177 3366912 469 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134538567 0 0 4096 0 0 0 0 17 1 0 0
/proc/20401/statm: 822 469 95 220 0 599 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 3288

[startup+51.1012 s]
/proc/loadavg: 1.01 0.97 0.98 2/78 20404
/proc/meminfo: memFree=1479096/2055920 swapFree=4159768/4192956
[pid=20401] ppid=20399 vsize=3552 CPUtime=51.07
/proc/20401/stat : 20401 (sat7_bin) R 20399 20401 19018 0 -1 4194304 573 0 0 0 5107 0 0 0 25 0 1 0 215314177 3637248 557 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134578665 0 0 4096 0 0 0 0 17 1 0 0
/proc/20401/statm: 888 557 95 220 0 665 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 3552

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

[startup+63.9017 s]
/proc/loadavg: 1.01 0.97 0.98 2/78 20404
/proc/meminfo: memFree=1478968/2055920 swapFree=4159768/4192956
[pid=20401] ppid=20399 vsize=3684 CPUtime=63.86
/proc/20401/stat : 20401 (sat7_bin) R 20399 20401 19018 0 -1 4194304 605 0 0 0 6386 0 0 0 25 0 1 0 215314177 3772416 589 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134558977 0 0 4096 0 0 0 0 17 1 0 0
/proc/20401/statm: 921 589 95 220 0 698 0
Current children cumulated CPU time (s) 63.86
Current children cumulated vsize (KiB) 3684

[startup+76.7011 s]
/proc/loadavg: 1.01 0.97 0.98 2/78 20404
/proc/meminfo: memFree=1478840/2055920 swapFree=4159768/4192956
[pid=20401] ppid=20399 vsize=3684 CPUtime=76.66
/proc/20401/stat : 20401 (sat7_bin) R 20399 20401 19018 0 -1 4194304 645 0 0 0 7666 0 0 0 25 0 1 0 215314177 3772416 629 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532419 0 0 4096 0 0 0 0 17 1 0 0
/proc/20401/statm: 921 629 95 220 0 698 0
Current children cumulated CPU time (s) 76.66
Current children cumulated vsize (KiB) 3684

[startup+79.9017 s]
/proc/loadavg: 1.01 0.97 0.98 2/78 20404
/proc/meminfo: memFree=1478776/2055920 swapFree=4159768/4192956
[pid=20401] ppid=20399 vsize=3684 CPUtime=79.86
/proc/20401/stat : 20401 (sat7_bin) R 20399 20401 19018 0 -1 4194304 649 0 0 0 7986 0 0 0 25 0 1 0 215314177 3772416 633 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532383 0 0 4096 0 0 0 0 17 1 0 0
/proc/20401/statm: 921 633 95 220 0 698 0
Current children cumulated CPU time (s) 79.86
Current children cumulated vsize (KiB) 3684

[startup+83.1014 s]
/proc/loadavg: 1.01 0.97 0.98 2/78 20404
/proc/meminfo: memFree=1478776/2055920 swapFree=4159768/4192956
[pid=20401] ppid=20399 vsize=3684 CPUtime=83.06
/proc/20401/stat : 20401 (sat7_bin) R 20399 20401 19018 0 -1 4194304 657 0 0 0 8306 0 0 0 25 0 1 0 215314177 3772416 641 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134536549 0 0 4096 0 0 0 0 17 1 0 0
/proc/20401/statm: 921 641 95 220 0 698 0
Current children cumulated CPU time (s) 83.06
Current children cumulated vsize (KiB) 3684

[startup+83.9025 s]
/proc/loadavg: 1.01 0.97 0.98 2/78 20404
/proc/meminfo: memFree=1478776/2055920 swapFree=4159768/4192956
[pid=20401] ppid=20399 vsize=3684 CPUtime=83.86
/proc/20401/stat : 20401 (sat7_bin) R 20399 20401 19018 0 -1 4194304 658 0 0 0 8386 0 0 0 25 0 1 0 215314177 3772416 642 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532450 0 0 4096 0 0 0 0 17 1 0 0
/proc/20401/statm: 921 642 95 220 0 698 0
Current children cumulated CPU time (s) 83.86
Current children cumulated vsize (KiB) 3684

[startup+84.7057 s]
/proc/loadavg: 1.01 0.97 0.98 2/78 20404
/proc/meminfo: memFree=1478712/2055920 swapFree=4159768/4192956
[pid=20401] ppid=20399 vsize=3820 CPUtime=84.66
/proc/20401/stat : 20401 (sat7_bin) R 20399 20401 19018 0 -1 4194304 663 0 0 0 8466 0 0 0 25 0 1 0 215314177 3911680 647 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134531386 0 0 4096 0 0 0 0 17 1 0 0
/proc/20401/statm: 955 647 95 220 0 732 0
Current children cumulated CPU time (s) 84.66
Current children cumulated vsize (KiB) 3820

[startup+84.9017 s]
/proc/loadavg: 1.01 0.97 0.98 2/78 20404
/proc/meminfo: memFree=1478712/2055920 swapFree=4159768/4192956
[pid=20401] ppid=20399 vsize=3820 CPUtime=84.86
/proc/20401/stat : 20401 (sat7_bin) R 20399 20401 19018 0 -1 4194304 663 0 0 0 8486 0 0 0 25 0 1 0 215314177 3911680 647 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532383 0 0 4096 0 0 0 0 17 1 0 0
/proc/20401/statm: 955 647 95 220 0 732 0
Current children cumulated CPU time (s) 84.86
Current children cumulated vsize (KiB) 3820

Child status: 20
Real time (s): 84.9749
CPU time (s): 84.9401
CPU user time (s): 84.9321
CPU system time (s): 0.007998
CPU usage (%): 99.959
Max. virtual memory (cumulated for all children) (KiB): 3820

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 84.9321
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 663
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= 7
involuntary context switches= 168

runsolver used 0.080987 second user time and 0.187971 second system time

The end

Launcher Data (download as text)

Begin job on node38 on Sun Apr 29 07:24:35 UTC 2007

IDJOB= 427018
IDBENCH= 20295
IDSOLVER= 183
FILE ID= node38/427018-1177831475

PBS_JOBID= 4718241

Free space on /tmp= 66563 MiB

SOLVER NAME= SAT7 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S1501024241-13-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/427018-1177831475/sat7_bin /tmp/evaluation/427018-1177831475/instance-427018-1177831475.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node38/watcher-427018-1177831475 -o ROOT/results/node38/solver-427018-1177831475 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/427018-1177831475/sat7_bin /tmp/evaluation/427018-1177831475/instance-427018-1177831475.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  c3f41406395e9f4a8725889bf7cf43c6

RANDOM SEED= 697249497

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node38.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.263
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		: 3000.263
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:       1481816 kB
Buffers:         50056 kB
Cached:         428124 kB
SwapCached:       3532 kB
Active:         306536 kB
Inactive:       197160 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1481816 kB
SwapTotal:     4192956 kB
SwapFree:      4159768 kB
Dirty:            1200 kB
Writeback:           0 kB
Mapped:          33536 kB
Slab:            55692 kB
Committed_AS:  1804032 kB
PageTables:       2064 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= 66563 MiB

End job on node38 on Sun Apr 29 07:26:00 UTC 2007