Trace number 1527810

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
gnovelty+ 2009-03-22SAT 0.555915 0.554966

General information on the benchmark

NameRANDOM/LARGE/3SAT/UNKNOWN/2000/
unif-k3-r4.2-v2000-c8400-S1075551507-050.cnf
MD5SUMe6c4aa9150c7e5a44a3dd14ff53afc9f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.233964
Satisfiable
(Un)Satisfiability was proved
Number of variables2000
Number of clauses8400
Sum of the clauses size25200
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 38400
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data

0.09/0.17	c +------------------------------+
0.09/0.17	c | gNovelty+, version 1.2       |
0.09/0.17	c +------------------------------+
0.09/0.17	c gnovelty+ -h for help
0.09/0.17	c 
0.09/0.17	finish initINstance()
0.09/0.17	c Problem instance: numAtoms = 2000, numClauses = 8400, numLiterals = 25200
0.09/0.17	c General parameters: seed = 1390705492, timeout = 10 secs, targetCost = 0, print solution: no
0.09/0.17	c gNovelty+ parameters: walkprob = 0.01, smoothprob = 0.40, noise = adaptive
0.09/0.17	c tries = 1
0.09/0.17	c 
0.49/0.54	     0   195884         0    195884     34567      0.36
0.49/0.54	s SATISFIABLE
0.49/0.54	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 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0.49/0.54	c Done in 0.360000 seconds

Verifier Data

OK

Watcher Data

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1527810-1238388734/watcher-1527810-1238388734 -o /tmp/evaluation-result-1527810-1238388734/solver-1527810-1238388734 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+ HOME/instance-1527810-1238388734.cnf 1390705492 

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: 0.99 0.98 1.00 3/64 19354
/proc/meminfo: memFree=1040688/2055920 swapFree=4167280/4192956
[pid=19354] ppid=19352 vsize=957924 CPUtime=0
/proc/19354/stat : 19354 (gnovelty+) R 19352 19354 19109 0 -1 4194304 735 0 0 0 0 0 0 0 18 0 1 0 1111538995 980914176 719 1992294400 134512640 135098890 4294956208 18446744073709551615 134517913 0 0 4096 0 0 0 0 17 1 0 0
/proc/19354/statm: 239481 725 46 143 0 239336 0

[startup+0.095345 s]
/proc/loadavg: 0.99 0.98 1.00 3/64 19354
/proc/meminfo: memFree=1040688/2055920 swapFree=4167280/4192956
[pid=19354] ppid=19352 vsize=958704 CPUtime=0.08
/proc/19354/stat : 19354 (gnovelty+) R 19352 19354 19109 0 -1 4194304 11564 0 0 0 4 4 0 0 18 0 1 0 1111538995 981712896 11547 1992294400 134512640 135098890 4294956208 18446744073709551615 134518700 0 0 4096 0 0 0 0 17 1 0 0
/proc/19354/statm: 239676 11552 48 143 0 239531 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 958704

[startup+0.101344 s]
/proc/loadavg: 0.99 0.98 1.00 3/64 19354
/proc/meminfo: memFree=1040688/2055920 swapFree=4167280/4192956
[pid=19354] ppid=19352 vsize=958704 CPUtime=0.09
/proc/19354/stat : 19354 (gnovelty+) R 19352 19354 19109 0 -1 4194304 12207 0 0 0 5 4 0 0 18 0 1 0 1111538995 981712896 12190 1992294400 134512640 135098890 4294956208 18446744073709551615 134518515 0 0 4096 0 0 0 0 17 1 0 0
/proc/19354/statm: 239676 12195 48 143 0 239531 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 958704

[startup+0.301361 s]
/proc/loadavg: 0.99 0.98 1.00 3/64 19354
/proc/meminfo: memFree=1040688/2055920 swapFree=4167280/4192956
[pid=19354] ppid=19352 vsize=958704 CPUtime=0.29
/proc/19354/stat : 19354 (gnovelty+) R 19352 19354 19109 0 -1 4194304 19804 0 0 0 21 8 0 0 19 0 1 0 1111538995 981712896 19787 1992294400 134512640 135098890 4294956208 18446744073709551615 134526822 0 0 4096 0 0 0 0 17 1 0 0
/proc/19354/statm: 239676 19787 65 143 0 239531 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 958704

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

[startup+0.501377 s]
/proc/loadavg: 0.99 0.98 1.00 3/64 19354
/proc/meminfo: memFree=1040688/2055920 swapFree=4167280/4192956
[pid=19354] ppid=19352 vsize=958704 CPUtime=0.49
/proc/19354/stat : 19354 (gnovelty+) R 19352 19354 19109 0 -1 4194304 19804 0 0 0 41 8 0 0 21 0 1 0 1111538995 981712896 19787 1992294400 134512640 135098890 4294956208 18446744073709551615 134515194 0 0 4096 0 0 0 0 17 1 0 0
/proc/19354/statm: 239676 19787 65 143 0 239531 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 958704

Child status: 10
Real time (s): 0.554966
CPU time (s): 0.555915
CPU user time (s): 0.45893
CPU system time (s): 0.096985
CPU usage (%): 100.171
Max. virtual memory (cumulated for all children) (KiB): 958704

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.45893
system time used= 0.096985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19808
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= 1

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data

Begin job on node31 at 2009-03-30 06:52:14
IDJOB=1527810
IDBENCH=70291
IDSOLVER=536
FILE ID=node31/1527810-1238388734
PBS_JOBID= 9061361
Free space on /tmp= 66424 MiB

SOLVER NAME= gnovelty+ 2009-03-22
BENCH NAME= SAT09/RANDOM/LARGE/3SAT/UNKNOWN/2000/unif-k3-r4.2-v2000-c8400-S1075551507-050.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1527810-1238388734/watcher-1527810-1238388734 -o /tmp/evaluation-result-1527810-1238388734/solver-1527810-1238388734 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+ HOME/instance-1527810-1238388734.cnf 1390705492

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

MD5SUM BENCH= e6c4aa9150c7e5a44a3dd14ff53afc9f
RANDOM SEED=1390705492

node31.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		: 3000.214
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:       1041104 kB
Buffers:        111872 kB
Cached:         785560 kB
SwapCached:      18664 kB
Active:          28908 kB
Inactive:       888684 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1041104 kB
SwapTotal:     4192956 kB
SwapFree:      4167280 kB
Dirty:            1028 kB
Writeback:           0 kB
Mapped:          17352 kB
Slab:            82920 kB
Committed_AS:  2976112 kB
PageTables:       1472 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66424 MiB
End job on node31 at 2009-03-30 06:52:15