Trace number 311571

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
FH 2007-02-08SAT 5.2652 5.27042

General information on the benchmark

Namerandom/2+p/p0.8/v2035/
unif2p-p0.8-v2035-c6328-S1137479270-03-SAT.cnf
MD5SUM3fec6aa272c98a2a7e0bf3cf53f83f02
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.38794
Satisfiable
(Un)Satisfiability was proved
Number of variables2035
Number of clauses6327
Sum of the clauses size17716
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 21265
Number of clauses of size 35062
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

5.21/5.26	c try 1 flip j 3379900
5.21/5.26	c A solution is found
5.21/5.26	s SATISFIABLE
5.21/5.26	v -1 -2 -3 -4 -5 6 -7 -8 9 10 11 -12 -13 14 15 -16 17 -18 19 20 -21 -22 -23 24 -25 26 -27 -28 -29 -30 -31 32 -33 34 35 36 37 -38 -39 40 -41 -42 -43 44 -45 46 47 -48 -49 50 -51 -52 53 -54 55 56 57 -58 59 60 61 62 63 64 65 66 67 68 -69 -70 -71 -72 -73 74 75 -76 -77 78 79 -80 81 -82 -83 -84 85 -86 87 88 89 90 91 -92 93 -94 -95 96 -97 98 -99 100 101 102 -103 -104 -105 106 -107 -108 -109 110 -111 -112 -113 -114 115 116 -117 118 -119 120 121 122 123 124 -125 126 -127 128 129 130 -131 -132 -133 -134 -135 136 137 138 -139 -140 -141 142 -143 144 145 146 147 148 -149 150 151 -152 -153 154 155 -156 157 158 159 160 161 162 163 164 165 -166 167 -168 -169 170 171 172 173 174 -175 176 -177 178 179 -180 181 182 -183 184 -185 186 187 188 189 190 191 192 -193 194 -195 -196 -197 198 -199 -200 201 202 203 204 -205 206 207 208 209 -210 -211 212 213 -214 -215 -216 -217 -218 -219 220 -221 -222 223 224 -225 226 227 228 229 -230 -231 232 233 -234 -235 236 -237 238 239 -240 241 -242 -243 -244 245 246 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5.21/5.26	v 0 
5.21/5.26	c Done (mycputime is 0.001 seconds)

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/node63/watcher-311571-1172571777 -o ROOT/results/node63/solver-311571-1172571777 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/311571-1172571777/FH /tmp/evaluation/311571-1172571777/instance-311571-1172571777.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 0.95 0.98 3/64 16014
/proc/meminfo: memFree=1805096/2055920 swapFree=4179040/4192956
[pid=16014] ppid=16012 vsize=244720 CPUtime=0
/proc/16014/stat : 16014 (FH) R 16012 16014 15580 0 -1 4194304 95 0 0 0 0 0 0 0 18 0 1 0 277135114 250593280 79 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134589751 0 0 4096 0 0 0 0 17 1 0 0
/proc/16014/statm: 61180 80 36 103 0 60684 0

[startup+0.107467 s]
/proc/loadavg: 0.92 0.95 0.98 3/64 16014
/proc/meminfo: memFree=1805096/2055920 swapFree=4179040/4192956
[pid=16014] ppid=16012 vsize=246796 CPUtime=0.1
/proc/16014/stat : 16014 (FH) R 16012 16014 15580 0 -1 4194304 371 0 0 0 10 0 0 0 18 0 1 0 277135114 252719104 351 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134553480 0 0 4096 0 0 0 0 17 1 0 0
/proc/16014/statm: 61699 351 40 103 0 61203 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 246796

[startup+0.517511 s]
/proc/loadavg: 0.92 0.95 0.98 3/64 16014
/proc/meminfo: memFree=1805096/2055920 swapFree=4179040/4192956
[pid=16014] ppid=16012 vsize=246796 CPUtime=0.51
/proc/16014/stat : 16014 (FH) R 16012 16014 15580 0 -1 4194304 371 0 0 0 51 0 0 0 21 0 1 0 277135114 252719104 351 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134555005 0 0 4096 0 0 0 0 17 1 0 0
/proc/16014/statm: 61699 351 40 103 0 61203 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 246796

[startup+1.3376 s]
/proc/loadavg: 0.92 0.95 0.98 2/65 16015
/proc/meminfo: memFree=1803616/2055920 swapFree=4179040/4192956
[pid=16014] ppid=16012 vsize=246796 CPUtime=1.33
/proc/16014/stat : 16014 (FH) R 16012 16014 15580 0 -1 4194304 371 0 0 0 133 0 0 0 25 0 1 0 277135114 252719104 351 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134553270 0 0 4096 0 0 0 0 17 1 0 0
/proc/16014/statm: 61699 351 40 103 0 61203 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 246796

[startup+2.97377 s]
/proc/loadavg: 0.92 0.95 0.98 2/65 16015
/proc/meminfo: memFree=1803488/2055920 swapFree=4179040/4192956
[pid=16014] ppid=16012 vsize=246796 CPUtime=2.96
/proc/16014/stat : 16014 (FH) R 16012 16014 15580 0 -1 4194304 371 0 0 0 296 0 0 0 25 0 1 0 277135114 252719104 351 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134553573 0 0 4096 0 0 0 0 17 1 0 0
/proc/16014/statm: 61699 351 40 103 0 61203 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 246796

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

[startup+3.2798 s]
/proc/loadavg: 0.92 0.95 0.98 2/65 16015
/proc/meminfo: memFree=1803488/2055920 swapFree=4179040/4192956
[pid=16014] ppid=16012 vsize=246796 CPUtime=3.27
/proc/16014/stat : 16014 (FH) R 16012 16014 15580 0 -1 4194304 371 0 0 0 327 0 0 0 25 0 1 0 277135114 252719104 351 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134554437 0 0 4096 0 0 0 0 17 1 0 0
/proc/16014/statm: 61699 351 40 103 0 61203 0
Current children cumulated CPU time (s) 3.27
Current children cumulated vsize (KiB) 246796

[startup+4.09989 s]
/proc/loadavg: 0.93 0.95 0.98 2/65 16015
/proc/meminfo: memFree=1803488/2055920 swapFree=4179040/4192956
[pid=16014] ppid=16012 vsize=246796 CPUtime=4.09
/proc/16014/stat : 16014 (FH) R 16012 16014 15580 0 -1 4194304 371 0 0 0 409 0 0 0 25 0 1 0 277135114 252719104 351 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134552048 0 0 4096 0 0 0 0 17 1 0 0
/proc/16014/statm: 61699 351 40 103 0 61203 0
Current children cumulated CPU time (s) 4.09
Current children cumulated vsize (KiB) 246796

[startup+4.91998 s]
/proc/loadavg: 0.93 0.95 0.98 2/65 16015
/proc/meminfo: memFree=1803488/2055920 swapFree=4179040/4192956
[pid=16014] ppid=16012 vsize=246796 CPUtime=4.91
/proc/16014/stat : 16014 (FH) R 16012 16014 15580 0 -1 4194304 371 0 0 0 491 0 0 0 25 0 1 0 277135114 252719104 351 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134552425 0 0 4096 0 0 0 0 17 1 0 0
/proc/16014/statm: 61699 351 40 103 0 61203 0
Current children cumulated CPU time (s) 4.91
Current children cumulated vsize (KiB) 246796

[startup+5.124 s]
/proc/loadavg: 0.93 0.95 0.98 2/65 16015
/proc/meminfo: memFree=1803488/2055920 swapFree=4179040/4192956
[pid=16014] ppid=16012 vsize=246796 CPUtime=5.11
/proc/16014/stat : 16014 (FH) R 16012 16014 15580 0 -1 4194304 371 0 0 0 511 0 0 0 25 0 1 0 277135114 252719104 351 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134558740 0 0 4096 0 0 0 0 17 1 0 0
/proc/16014/statm: 61699 351 40 103 0 61203 0
Current children cumulated CPU time (s) 5.11
Current children cumulated vsize (KiB) 246796

[startup+5.22601 s]
/proc/loadavg: 0.93 0.95 0.98 2/65 16015
/proc/meminfo: memFree=1803488/2055920 swapFree=4179040/4192956
[pid=16014] ppid=16012 vsize=246796 CPUtime=5.21
/proc/16014/stat : 16014 (FH) R 16012 16014 15580 0 -1 4194304 371 0 0 0 521 0 0 0 25 0 1 0 277135114 252719104 351 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134546138 0 0 4096 0 0 0 0 17 1 0 0
/proc/16014/statm: 61699 351 40 103 0 61203 0
Current children cumulated CPU time (s) 5.21
Current children cumulated vsize (KiB) 246796

Child status: 10
Real time (s): 5.27042
CPU time (s): 5.2652
CPU user time (s): 5.2622
CPU system time (s): 0.002999
CPU usage (%): 99.9009
Max. virtual memory (cumulated for all children) (KiB): 246796

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.2622
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 384
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= 11
involuntary context switches= 8

runsolver used 0.007998 second user time and 0.014997 second system time

The end

Launcher Data (download as text)

Begin job on node63 on Tue Feb 27 10:22:57 UTC 2007

IDJOB= 311571
IDBENCH= 20317
IDSOLVER= 117
FILE ID= node63/311571-1172571777

PBS_JOBID= 3971898

Free space on /tmp= 66554 MiB

SOLVER NAME= FH 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v2035/unif2p-p0.8-v2035-c6328-S1137479270-03-SAT.cnf
COMMAND LINE= /tmp/evaluation/311571-1172571777/FH /tmp/evaluation/311571-1172571777/instance-311571-1172571777.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node63/watcher-311571-1172571777 -o ROOT/results/node63/solver-311571-1172571777 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/311571-1172571777/FH /tmp/evaluation/311571-1172571777/instance-311571-1172571777.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  3fec6aa272c98a2a7e0bf3cf53f83f02

RANDOM SEED= 265619081

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node63.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		: 3000.214
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		: 3000.214
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:       1805504 kB
Buffers:         32544 kB
Cached:         165100 kB
SwapCached:       8192 kB
Active:         119748 kB
Inactive:        92056 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1805504 kB
SwapTotal:     4192956 kB
SwapFree:      4179040 kB
Dirty:            6340 kB
Writeback:           0 kB
Mapped:          15528 kB
Slab:            24576 kB
Committed_AS:   676444 kB
PageTables:       1460 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= 66554 MiB

End job on node63 on Tue Feb 27 10:23:03 UTC 2007