Trace number 308254

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
CMUSAT 2007-02-08SAT 0.998847 0.999559

General information on the benchmark

Namerandom/2+p/p0.7/v3500/
unif2p-p0.7-v3500-c9345-S1568322528-08-SAT.cnf
MD5SUMd0f9a30f8fda4c844dc97689f3035cdb
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.613906
Satisfiable
(Un)Satisfiability was proved
Number of variables3494
Number of clauses9344
Sum of the clauses size25229
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22803
Number of clauses of size 36541
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	c Pre-processing provided 0 assignments
0.00/0.00	c |  Number of variables:  3500                                                 |
0.00/0.01	c |  Number of clauses:    9344                                                 |
0.91/0.99	c |  Parsing time:         0.01         sec                                       |
0.91/0.99	c #varS 3500 #clauseS 7793
0.91/0.99	c REMAP internally 1
0.91/0.99	c After remapping new number of variables: 2465
0.91/0.99	c DBreduced=0 GV=102[0]  GL=7894[ 7793,101] Prune=400 decisions=298 restart=0 est=0.284009 DB Impl=31203[0]  
0.91/0.99	c DBreduced=0 GV=151[0]  GL=7943[ 7793,150] Prune=524 decisions=373 restart=1 est=0.284157 DB Impl=45886[0]  
0.91/0.99	c DBreduced=0 GV=226[0]  GL=8018[ 7793,225] Prune=715 decisions=489 restart=2 est=0.284338 DB Impl=68729[0]  
0.91/0.99	c DBreduced=0 GV=339[0]  GL=8131[ 7793,338] Prune=1029 decisions=690 restart=3 est=0.28414 DB Impl=102711[0]  
0.91/0.99	c DBreduced=0 GV=508[0]  GL=8300[ 7793,507] Prune=1437 decisions=929 restart=4 est=0.284025 DB Impl=148464[0]  
0.91/0.99	c DBreduced=0 GV=760[0]  GL=8552[ 7793,759] Prune=2088 decisions=1328 restart=5 est=0.284107 DB Impl=228962[0]  
0.91/0.99	c DBreduced=0 GV=1140[0]  GL=8932[ 7793,1139] Prune=2979 decisions=1839 restart=6 est=0.284075 DB Impl=341460[0]  
0.91/0.99	c DBreduced=0 GV=1709[0]  GL=9501[ 7793,1708] Prune=4326 decisions=2617 restart=7 est=0.283992 DB Impl=519524[0]  
0.91/0.99	c DBreduced=0 GV=2566[0]  GL=10358[ 7793,2565] Prune=6359 decisions=3793 restart=8 est=0.283993 DB Impl=781335[0]  
0.91/0.99	c DBreduced=1 GV=3845[0]  GL=11276[ 7793,3483] Prune=9435 decisions=5590 restart=9 est=0.284996 DB Impl=1181009[0]  
0.91/0.99	c After partial model completion 2465 assignments
0.91/0.99	c REMAP internally 0
0.91/0.99	c Number of variables:  3500
0.91/0.99	c Number of clauses:    9344
0.91/0.99	c #Total time (in seconds): 0.988849
0.91/0.99	c #Memory used (in MB): 4.19141
0.91/0.99	c 
0.91/0.99	s SATISFIABLE
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Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node59/watcher-308254-1172518099 -o ROOT/results/node59/solver-308254-1172518099 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/308254-1172518099/cmusat /tmp/evaluation/308254-1172518099/instance-308254-1172518099.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 0.92 0.98 1.02 3/64 3149
/proc/meminfo: memFree=1935208/2055920 swapFree=4183500/4192956
[pid=3149] ppid=3147 vsize=2632 CPUtime=0
/proc/3149/stat : 3149 (cmusat) R 3147 3149 2707 0 -1 4194304 293 0 0 0 0 0 0 0 18 0 1 0 271766678 2695168 276 18446744073709551615 134512640 135508737 4294956720 18446744073709551615 135099179 0 0 4096 35 0 0 0 17 1 0 0
/proc/3149/statm: 658 276 96 243 0 412 0

[startup+0.106263 s]
/proc/loadavg: 0.92 0.98 1.02 3/64 3149
/proc/meminfo: memFree=1935208/2055920 swapFree=4183500/4192956
[pid=3149] ppid=3147 vsize=3552 CPUtime=0.1
/proc/3149/stat : 3149 (cmusat) R 3147 3149 2707 0 -1 4194304 551 0 0 0 10 0 0 0 18 0 1 0 271766678 3637248 534 18446744073709551615 134512640 135508737 4294956720 18446744073709551615 134589545 0 0 4096 35 0 0 0 17 1 0 0
/proc/3149/statm: 888 534 118 243 0 642 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 3552

[startup+0.514306 s]
/proc/loadavg: 0.92 0.98 1.02 3/64 3149
/proc/meminfo: memFree=1935208/2055920 swapFree=4183500/4192956
[pid=3149] ppid=3147 vsize=3948 CPUtime=0.51
/proc/3149/stat : 3149 (cmusat) R 3147 3149 2707 0 -1 4194304 631 0 0 0 51 0 0 0 21 0 1 0 271766678 4042752 614 18446744073709551615 134512640 135508737 4294956720 18446744073709551615 134589601 0 0 4096 35 0 0 0 17 1 0 0
/proc/3149/statm: 987 614 118 243 0 741 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 3948

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

[startup+0.82034 s]
/proc/loadavg: 0.92 0.98 1.02 3/64 3149
/proc/meminfo: memFree=1935208/2055920 swapFree=4183500/4192956
[pid=3149] ppid=3147 vsize=4368 CPUtime=0.81
/proc/3149/stat : 3149 (cmusat) R 3147 3149 2707 0 -1 4194304 745 0 0 0 81 0 0 0 24 0 1 0 271766678 4472832 728 18446744073709551615 134512640 135508737 4294956720 18446744073709551615 134590259 0 0 4096 35 0 0 0 17 1 0 0
/proc/3149/statm: 1092 728 118 243 0 846 0
Current children cumulated CPU time (s) 0.81
Current children cumulated vsize (KiB) 4368

[startup+0.922352 s]
/proc/loadavg: 0.92 0.98 1.02 3/64 3149
/proc/meminfo: memFree=1935208/2055920 swapFree=4183500/4192956
[pid=3149] ppid=3147 vsize=4528 CPUtime=0.91
/proc/3149/stat : 3149 (cmusat) R 3147 3149 2707 0 -1 4194304 770 0 0 0 91 0 0 0 24 0 1 0 271766678 4636672 753 18446744073709551615 134512640 135508737 4294956720 18446744073709551615 134581355 0 0 4096 35 0 0 0 17 1 0 0
/proc/3149/statm: 1132 753 118 243 0 886 0
Current children cumulated CPU time (s) 0.91
Current children cumulated vsize (KiB) 4528

Child status: 10
Real time (s): 0.999559
CPU time (s): 0.998847
CPU user time (s): 0.989849
CPU system time (s): 0.008998
CPU usage (%): 99.9288
Max. virtual memory (cumulated for all children) (KiB): 4528

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.989849
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 782
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= 8
involuntary context switches= 0

runsolver used 0.002999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node59 on Mon Feb 26 19:28:20 UTC 2007

IDJOB= 308254
IDBENCH= 20226
IDSOLVER= 121
FILE ID= node59/308254-1172518099

PBS_JOBID= 3971778

Free space on /tmp= 66559 MiB

SOLVER NAME= CMUSAT 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.7/v3500/unif2p-p0.7-v3500-c9345-S1568322528-08-SAT.cnf
COMMAND LINE= /tmp/evaluation/308254-1172518099/cmusat /tmp/evaluation/308254-1172518099/instance-308254-1172518099.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node59/watcher-308254-1172518099 -o ROOT/results/node59/solver-308254-1172518099 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/308254-1172518099/cmusat /tmp/evaluation/308254-1172518099/instance-308254-1172518099.cnf            

META MD5SUM SOLVER= af990fb12f8926fdd756b397adb3b5cf
MD5SUM BENCH=  d0f9a30f8fda4c844dc97689f3035cdb

RANDOM SEED= 409011776

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node59.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		: 3000.225
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		: 3000.225
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:       1935680 kB
Buffers:         20096 kB
Cached:          59452 kB
SwapCached:       3140 kB
Active:          27800 kB
Inactive:        61364 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1935680 kB
SwapTotal:     4192956 kB
SwapFree:      4183500 kB
Dirty:            2580 kB
Writeback:           0 kB
Mapped:          15456 kB
Slab:            17092 kB
Committed_AS:   541456 kB
PageTables:       1472 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= 66559 MiB

End job on node59 on Mon Feb 26 19:28:21 UTC 2007