Trace number 311122

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
DEWSATZ 2007-02-08SAT 0.659899 0.661892

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S1476745538-08-SAT.cnf
MD5SUMc77e3fe2797ba24ba2baccdc1afa561c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.028995
Satisfiable
(Un)Satisfiability was proved
Number of variables1294
Number of clauses4026
Sum of the clauses size11273
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2805
Number of clauses of size 33221
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.61/0.65	c   
0.61/0.65	c =====================================================================================================
0.61/0.65	c Copyright (c) 2004 National ICT Australia Limited (NICTA) and applicable third parties.
0.61/0.65	c For details, see the Australian Public Licence B (OZPLB) V1-1, under which this software is licensed.
0.61/0.65	c The OZPLB text is embedded in the source code for this software.
0.61/0.65	c =====================================================================================================
0.61/0.65	c   
0.61/0.65	c solution of Dew_Satz_1e.c 
0.61/0.65	s SATISFIABLE
0.61/0.65	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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0.61/0.66	c Dew_Satz_1e /tmp/evaluation/311122-1172564538/instance-311122-1172564538.cnf 1  0.650  0.040 37 37 0 37 79 383733 4638 29316 3093 4063 4063 1295 0 1295

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/node13/watcher-311122-1172564538 -o ROOT/results/node13/solver-311122-1172564538 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/311122-1172564538/dewSatz /tmp/evaluation/311122-1172564538/instance-311122-1172564538.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: 0.96 0.97 0.98 3/77 24863
/proc/meminfo: memFree=1713320/2055920 swapFree=4192812/4192956
[pid=24863] ppid=24861 vsize=690016 CPUtime=0
/proc/24863/stat : 24863 (dewSatz) R 24861 24863 23333 0 -1 4194304 101 0 0 0 0 0 0 0 18 0 1 0 276408243 706576384 85 18446744073709551615 134512640 134923568 4294956704 18446744073709551615 134594829 0 0 4096 0 0 0 0 17 0 0 0
/proc/24863/statm: 172504 85 39 100 0 172401 0

[startup+0.10812 s]
/proc/loadavg: 0.96 0.97 0.98 3/77 24863
/proc/meminfo: memFree=1713320/2055920 swapFree=4192812/4192956
[pid=24863] ppid=24861 vsize=690288 CPUtime=0.1
/proc/24863/stat : 24863 (dewSatz) R 24861 24863 23333 0 -1 4194304 10021 0 0 0 10 0 0 0 18 0 1 0 276408243 706854912 229 18446744073709551615 134512640 134923568 4294956704 18446744073709551615 134526962 0 0 4096 0 0 0 0 17 0 0 0
/proc/24863/statm: 172572 229 43 100 0 172469 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 690288

[startup+0.517175 s]
/proc/loadavg: 0.96 0.97 0.98 3/77 24863
/proc/meminfo: memFree=1713320/2055920 swapFree=4192812/4192956
[pid=24863] ppid=24861 vsize=690288 CPUtime=0.51
/proc/24863/stat : 24863 (dewSatz) R 24861 24863 23333 0 -1 4194304 10024 0 0 0 51 0 0 0 22 0 1 0 276408243 706854912 232 18446744073709551615 134512640 134923568 4294956704 18446744073709551615 134527138 0 0 4096 0 0 0 0 17 0 0 0
/proc/24863/statm: 172572 232 43 100 0 172469 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 690288

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

[startup+0.620189 s]
/proc/loadavg: 0.96 0.97 0.98 3/77 24863
/proc/meminfo: memFree=1713320/2055920 swapFree=4192812/4192956
[pid=24863] ppid=24861 vsize=690288 CPUtime=0.61
/proc/24863/stat : 24863 (dewSatz) R 24861 24863 23333 0 -1 4194304 10024 0 0 0 61 0 0 0 23 0 1 0 276408243 706854912 232 18446744073709551615 134512640 134923568 4294956704 18446744073709551615 134535055 0 0 4096 0 0 0 0 17 0 0 0
/proc/24863/statm: 172572 232 43 100 0 172469 0
Current children cumulated CPU time (s) 0.61
Current children cumulated vsize (KiB) 690288

Child status: 10
Real time (s): 0.661892
CPU time (s): 0.659899
CPU user time (s): 0.6549
CPU system time (s): 0.004999
CPU usage (%): 99.6989
Max. virtual memory (cumulated for all children) (KiB): 690288

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.6549
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10042
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= 5

runsolver used 0.002999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node13 on Tue Feb 27 08:22:18 UTC 2007

IDJOB= 311122
IDBENCH= 20305
IDSOLVER= 119
FILE ID= node13/311122-1172564538

PBS_JOBID= 3971661

Free space on /tmp= 66555 MiB

SOLVER NAME= DEWSATZ 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S1476745538-08-SAT.cnf
COMMAND LINE= /tmp/evaluation/311122-1172564538/dewSatz /tmp/evaluation/311122-1172564538/instance-311122-1172564538.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node13/watcher-311122-1172564538 -o ROOT/results/node13/solver-311122-1172564538 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/311122-1172564538/dewSatz /tmp/evaluation/311122-1172564538/instance-311122-1172564538.cnf            

META MD5SUM SOLVER= 96edd87e369231aed4bad098c50e0080
MD5SUM BENCH=  c77e3fe2797ba24ba2baccdc1afa561c

RANDOM SEED= 352451647

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node13.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		: 3000.236
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		: 3000.236
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:       1713736 kB
Buffers:         42292 kB
Cached:         181836 kB
SwapCached:          0 kB
Active:         237836 kB
Inactive:        40816 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1713736 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1092 kB
Writeback:           0 kB
Mapped:          73472 kB
Slab:            49044 kB
Committed_AS:  1082564 kB
PageTables:       1744 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= 66555 MiB

End job on node13 on Tue Feb 27 08:22:19 UTC 2007