Trace number 1540528

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+-V.2-T 2009-03-22SAT 0.634902 0.324834

General information on the benchmark

NameRANDOM/LARGE/3SAT/UNKNOWN/2000/
unif-k3-r4.2-v2000-c8400-S7007454-009.cnf
MD5SUM648c8d820b622b84f63b74fa018c43ab
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.12798
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 

0.00/0.01	c +------------------------------+
0.00/0.01	c | gNovelty+, version 2.0       |
0.00/0.01	c +------------------------------+
0.00/0.01	c gnovelty+ -h for help
0.00/0.01	c 
0.25/0.32	s SATISFIABLE
0.25/0.32	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 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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-1540528-1238434011/watcher-1540528-1238434011 -o /tmp/evaluation-result-1540528-1238434011/solver-1540528-1238434011 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/gnovelty+ HOME/instance-1540528-1238434011.cnf 2102633461 2 

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: 1.54 1.21 1.07 3/73 23566
/proc/meminfo: memFree=1632064/2055920 swapFree=4170060/4192956
[pid=23566] ppid=23564 vsize=60896 CPUtime=0
/proc/23566/stat : 23566 (gnovelty+) R 23564 23566 23387 0 -1 4194304 175 0 0 0 0 0 0 0 18 0 1 0 1116065011 62357504 160 1992294400 134512640 135728688 4294956192 18446744073709551615 134548809 0 0 4096 0 0 0 0 17 1 0 0
/proc/23566/statm: 15224 160 100 296 0 14925 0

[startup+0.057467 s]
/proc/loadavg: 1.54 1.21 1.07 3/73 23566
/proc/meminfo: memFree=1632064/2055920 swapFree=4170060/4192956
[pid=23566] ppid=23564 vsize=71828 CPUtime=0.25
/proc/23566/stat : 23566 (gnovelty+) R 23564 23566 23387 0 -1 4194304 369 0 0 0 24 1 0 0 16 0 2 0 1116065011 73551872 353 1992294400 134512640 135728688 4294956192 18446744073709551615 134612145 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/23566/statm: 17957 353 104 296 0 17658 0
Current children cumulated CPU time (s) 0.25
Current children cumulated vsize (KiB) 71828

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

[startup+0.057467 s]
/proc/loadavg: 1.54 1.21 1.07 3/73 23566
/proc/meminfo: memFree=1632064/2055920 swapFree=4170060/4192956
[pid=23566] ppid=23564 vsize=71828 CPUtime=0.25
/proc/23566/stat : 23566 (gnovelty+) R 23564 23566 23387 0 -1 4194304 369 0 0 0 24 1 0 0 16 0 2 0 1116065011 73551872 353 1992294400 134512640 135728688 4294956192 18446744073709551615 134612145 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/23566/statm: 17957 353 104 296 0 17658 0
Current children cumulated CPU time (s) 0.25
Current children cumulated vsize (KiB) 71828

Child status: 10
Real time (s): 0.324834
CPU time (s): 0.634902
CPU user time (s): 0.601908
CPU system time (s): 0.032994
CPU usage (%): 195.454
Max. virtual memory (cumulated for all children) (KiB): 71828

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.601908
system time used= 0.032994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 377
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= 45
involuntary context switches= 5

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node80 at 2009-03-30 19:26:51
IDJOB=1540528
IDBENCH=70284
IDSOLVER=552
FILE ID=node80/1540528-1238434011
PBS_JOBID= 9061593
Free space on /tmp= 64800 MiB

SOLVER NAME= gNovelty+-V.2-T 2009-03-22
BENCH NAME= SAT09/RANDOM/LARGE/3SAT/UNKNOWN/2000/unif-k3-r4.2-v2000-c8400-S7007454-009.cnf
COMMAND LINE= HOME/gnovelty+ BENCHNAME RANDOMSEED MAXNBTHREAD
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1540528-1238434011/watcher-1540528-1238434011 -o /tmp/evaluation-result-1540528-1238434011/solver-1540528-1238434011 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/gnovelty+ HOME/instance-1540528-1238434011.cnf 2102633461 2

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 2

MD5SUM BENCH= 648c8d820b622b84f63b74fa018c43ab
RANDOM SEED=2102633461

node80.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		: 3000.263
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1632480 kB
Buffers:         73452 kB
Cached:         274896 kB
SwapCached:      14568 kB
Active:         148296 kB
Inactive:       216552 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1632480 kB
SwapTotal:     4192956 kB
SwapFree:      4170060 kB
Dirty:            1812 kB
Writeback:           0 kB
Mapped:          22032 kB
Slab:            43736 kB
Committed_AS:  2853416 kB
PageTables:       2008 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= 64796 MiB
End job on node80 at 2009-03-30 19:26:51