Trace number 369965

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
adaptg2wsat0 2007-02-08SAT 0.275957 0.27838

General information on the benchmark

Namerandom/2+p/p0.8/v2405/
unif2p-p0.8-v2405-c7479-S2084125686-20-SAT.cnf
MD5SUM481b04db1084d221cad49f8d1e419306
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.275957
Satisfiable
(Un)Satisfiability was proved
Number of variables2405
Number of clauses7478
Sum of the clauses size20939
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 21495
Number of clauses of size 35983
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.19/0.27	c try 1 flip j 227610
0.19/0.27	c A solution is found
0.19/0.27	s SATISFIABLE
0.19/0.27	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 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0.19/0.27	v 0 
0.19/0.27	c Done (mycputime is 0.250 seconds)

Verifier Data (download as text)

OK

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node21/watcher-369965-1177549421 -o ROOT/results/node21/solver-369965-1177549421 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/369965-1177549421/adaptg2wsat0 /tmp/evaluation/369965-1177549421/instance-369965-1177549421.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: 0.54 0.79 0.85 3/77 9274
/proc/meminfo: memFree=1893816/2055920 swapFree=4155588/4192956
[pid=9274] ppid=9272 vsize=215024 CPUtime=0
/proc/9274/stat : 9274 (adaptg2wsat0) R 9272 9274 7616 0 -1 4194304 100 0 0 0 0 0 0 0 18 0 1 0 202859438 220184576 85 18446744073709551615 134512640 134930208 4294956656 18446744073709551615 134582935 0 0 4096 0 0 0 0 17 1 0 0
/proc/9274/statm: 53756 85 40 101 0 53262 0

[startup+0.036954 s]
/proc/loadavg: 0.54 0.79 0.85 3/77 9274
/proc/meminfo: memFree=1893816/2055920 swapFree=4155588/4192956
[pid=9274] ppid=9272 vsize=215704 CPUtime=0.03
/proc/9274/stat : 9274 (adaptg2wsat0) R 9272 9274 7616 0 -1 4194304 375 0 0 0 3 0 0 0 18 0 1 0 202859438 220880896 356 18446744073709551615 134512640 134930208 4294956656 18446744073709551615 134546920 0 0 4096 0 0 0 0 17 1 0 0
/proc/9274/statm: 53926 356 43 101 0 53432 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 215704

[startup+0.101961 s]
/proc/loadavg: 0.54 0.79 0.85 3/77 9274
/proc/meminfo: memFree=1893816/2055920 swapFree=4155588/4192956
[pid=9274] ppid=9272 vsize=215704 CPUtime=0.09
/proc/9274/stat : 9274 (adaptg2wsat0) R 9272 9274 7616 0 -1 4194304 375 0 0 0 9 0 0 0 18 0 1 0 202859438 220880896 356 18446744073709551615 134512640 134930208 4294956656 18446744073709551615 134544918 0 0 4096 0 0 0 0 17 1 0 0
/proc/9274/statm: 53926 356 43 101 0 53432 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 215704

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

[startup+0.201972 s]
/proc/loadavg: 0.54 0.79 0.85 3/77 9274
/proc/meminfo: memFree=1893816/2055920 swapFree=4155588/4192956
[pid=9274] ppid=9272 vsize=215704 CPUtime=0.19
/proc/9274/stat : 9274 (adaptg2wsat0) R 9272 9274 7616 0 -1 4194304 375 0 0 0 19 0 0 0 18 0 1 0 202859438 220880896 356 18446744073709551615 134512640 134930208 4294956656 18446744073709551615 134546734 0 0 4096 0 0 0 0 17 1 0 0
/proc/9274/statm: 53926 356 43 101 0 53432 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 215704

Child status: 10
Real time (s): 0.27838
CPU time (s): 0.275957
CPU user time (s): 0.272958
CPU system time (s): 0.002999
CPU usage (%): 99.1296
Max. virtual memory (cumulated for all children) (KiB): 215704

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.272958
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= 390
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= 6

runsolver used 0.002999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node21 on Thu Apr 26 01:03:41 UTC 2007

IDJOB= 369965
IDBENCH= 20325
IDSOLVER= 175
FILE ID= node21/369965-1177549421

PBS_JOBID= 4696564

Free space on /tmp= 66385 MiB

SOLVER NAME= adaptg2wsat0 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v2405/unif2p-p0.8-v2405-c7479-S2084125686-20-SAT.cnf
COMMAND LINE= /tmp/evaluation/369965-1177549421/adaptg2wsat0 /tmp/evaluation/369965-1177549421/instance-369965-1177549421.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node21/watcher-369965-1177549421 -o ROOT/results/node21/solver-369965-1177549421 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/369965-1177549421/adaptg2wsat0 /tmp/evaluation/369965-1177549421/instance-369965-1177549421.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  481b04db1084d221cad49f8d1e419306

RANDOM SEED= 509044692

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node21.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		: 3000.232
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		: 3000.232
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:       1894224 kB
Buffers:         32416 kB
Cached:          60424 kB
SwapCached:      15688 kB
Active:          88564 kB
Inactive:        28136 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1894224 kB
SwapTotal:     4192956 kB
SwapFree:      4155588 kB
Dirty:            6416 kB
Writeback:           0 kB
Mapped:          30208 kB
Slab:            30456 kB
Committed_AS:  1832644 kB
PageTables:       1784 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= 66385 MiB

End job on node21 on Thu Apr 26 01:03:42 UTC 2007