Trace number 310800

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
adaptg2wsatp 2007-02-08SAT 0.036993 0.037272

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S1665384822-14-SAT.cnf
MD5SUMbe7dc6f6bf5d0d6359adfd321a4b6af2
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.036993
Satisfiable
(Un)Satisfiability was proved
Number of variables1295
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)

0.00/0.03	c try 1 flip j 17264
0.00/0.03	c A solution is found
0.00/0.03	s SATISFIABLE
0.00/0.03	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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-1290 -1291 -1292 -1293 -1294 -1295 
0.00/0.03	v 0 
0.00/0.03	c Done (mycputime is 0.020 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/node55/watcher-310800-1172561967 -o ROOT/results/node55/solver-310800-1172561967 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310800-1172561967/adaptg2wsatp /tmp/evaluation/310800-1172561967/instance-310800-1172561967.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: 0.91 0.98 0.93 3/64 30865
/proc/meminfo: memFree=1887104/2055920 swapFree=4183516/4192956
[pid=30865] ppid=30863 vsize=222844 CPUtime=0
/proc/30865/stat : 30865 (adaptg2wsatp) R 30863 30865 29346 0 -1 4194304 97 0 0 0 0 0 0 0 18 0 1 0 276153164 228192256 81 18446744073709551615 134512640 134935456 4294956704 18446744073709551615 134608461 0 0 4096 0 0 0 0 17 1 0 0
/proc/30865/statm: 55711 82 38 103 0 55215 0

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

Child status: 10
Real time (s): 0.037272
CPU time (s): 0.036993
CPU user time (s): 0.034994
CPU system time (s): 0.001999
CPU usage (%): 99.2514
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.034994
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 269
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= 0

runsolver used 0.001999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node55 on Tue Feb 27 07:39:27 UTC 2007

IDJOB= 310800
IDBENCH= 20296
IDSOLVER= 125
FILE ID= node55/310800-1172561967

PBS_JOBID= 3971859

Free space on /tmp= 66554 MiB

SOLVER NAME= adaptg2wsatp 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S1665384822-14-SAT.cnf
COMMAND LINE= /tmp/evaluation/310800-1172561967/adaptg2wsatp /tmp/evaluation/310800-1172561967/instance-310800-1172561967.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node55/watcher-310800-1172561967 -o ROOT/results/node55/solver-310800-1172561967 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310800-1172561967/adaptg2wsatp /tmp/evaluation/310800-1172561967/instance-310800-1172561967.cnf            

META MD5SUM SOLVER= dc7cfffb7b5aa51d884144c196acd75c
MD5SUM BENCH=  be7dc6f6bf5d0d6359adfd321a4b6af2

RANDOM SEED= 433242268

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node55.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		: 3000.247
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		: 3000.247
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:       1887448 kB
Buffers:         19636 kB
Cached:         101660 kB
SwapCached:       3824 kB
Active:          67088 kB
Inactive:        64400 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1887448 kB
SwapTotal:     4192956 kB
SwapFree:      4183516 kB
Dirty:            6312 kB
Writeback:           0 kB
Mapped:          15368 kB
Slab:            23076 kB
Committed_AS:   833940 kB
PageTables:       1380 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 node55 on Tue Feb 27 07:39:27 UTC 2007