Trace number 310995

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
Hybrid1 2007-02-08SAT 1.60875 1.61066

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S1679085272-10-SAT.cnf
MD5SUM9f390533642969c6fa22110646f07992
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.154976
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)

1.53/1.60	c try 1 flip j 1220835
1.53/1.60	c A solution is found
1.53/1.60	s SATISFIABLE
1.53/1.60	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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-1291 1292 1293 1294 -1295 
1.53/1.60	v 0 
1.53/1.60	c Done (mycputime is 0.000 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/node3/watcher-310995-1172563690 -o ROOT/results/node3/solver-310995-1172563690 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310995-1172563690/Hybrid1 /tmp/evaluation/310995-1172563690/instance-310995-1172563690.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: 0.95 0.99 0.99 3/77 28725
/proc/meminfo: memFree=809888/2055920 swapFree=4192812/4192956
[pid=28725] ppid=28723 vsize=244720 CPUtime=0
/proc/28725/stat : 28725 (Hybrid1) R 28723 28725 27123 0 -1 4194304 102 0 0 0 0 0 0 0 18 0 1 0 276323872 250593280 86 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134604589 0 0 4096 0 0 0 0 17 1 0 0
/proc/28725/statm: 61180 86 39 103 0 60684 0

[startup+0.107492 s]
/proc/loadavg: 0.95 0.99 0.99 3/77 28725
/proc/meminfo: memFree=809888/2055920 swapFree=4192812/4192956
[pid=28725] ppid=28723 vsize=246664 CPUtime=0.1
/proc/28725/stat : 28725 (Hybrid1) R 28723 28725 27123 0 -1 4194304 279 0 0 0 10 0 0 0 18 0 1 0 276323872 252583936 259 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134551597 0 0 4096 0 0 0 0 17 1 0 0
/proc/28725/statm: 61666 259 44 103 0 61170 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 246664

[startup+0.515525 s]
/proc/loadavg: 0.95 0.99 0.99 3/77 28725
/proc/meminfo: memFree=809888/2055920 swapFree=4192812/4192956
[pid=28725] ppid=28723 vsize=246664 CPUtime=0.51
/proc/28725/stat : 28725 (Hybrid1) R 28723 28725 27123 0 -1 4194304 279 0 0 0 51 0 0 0 21 0 1 0 276323872 252583936 259 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134551531 0 0 4096 0 0 0 0 17 1 0 0
/proc/28725/statm: 61666 259 44 103 0 61170 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 246664

[startup+1.33559 s]
/proc/loadavg: 0.95 0.99 0.99 2/78 28726
/proc/meminfo: memFree=808792/2055920 swapFree=4192812/4192956
[pid=28725] ppid=28723 vsize=246664 CPUtime=1.33
/proc/28725/stat : 28725 (Hybrid1) R 28723 28725 27123 0 -1 4194304 279 0 0 0 133 0 0 0 25 0 1 0 276323872 252583936 259 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134551116 0 0 4096 0 0 0 0 17 1 0 0
/proc/28725/statm: 61666 259 44 103 0 61170 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 246664

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

[startup+1.4376 s]
/proc/loadavg: 0.95 0.99 0.99 2/78 28726
/proc/meminfo: memFree=808792/2055920 swapFree=4192812/4192956
[pid=28725] ppid=28723 vsize=246664 CPUtime=1.43
/proc/28725/stat : 28725 (Hybrid1) R 28723 28725 27123 0 -1 4194304 279 0 0 0 143 0 0 0 25 0 1 0 276323872 252583936 259 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134551531 0 0 4096 0 0 0 0 17 1 0 0
/proc/28725/statm: 61666 259 44 103 0 61170 0
Current children cumulated CPU time (s) 1.43
Current children cumulated vsize (KiB) 246664

[startup+1.53961 s]
/proc/loadavg: 0.95 0.99 0.99 2/78 28726
/proc/meminfo: memFree=808792/2055920 swapFree=4192812/4192956
[pid=28725] ppid=28723 vsize=246664 CPUtime=1.53
/proc/28725/stat : 28725 (Hybrid1) R 28723 28725 27123 0 -1 4194304 279 0 0 0 153 0 0 0 25 0 1 0 276323872 252583936 259 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134552268 0 0 4096 0 0 0 0 17 1 0 0
/proc/28725/statm: 61666 259 44 103 0 61170 0
Current children cumulated CPU time (s) 1.53
Current children cumulated vsize (KiB) 246664

Child status: 10
Real time (s): 1.61066
CPU time (s): 1.60875
CPU user time (s): 1.60576
CPU system time (s): 0.002999
CPU usage (%): 99.8815
Max. virtual memory (cumulated for all children) (KiB): 246664

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.60575
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= 292
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= 4

runsolver used 0.004999 second user time and 0.008998 second system time

The end

Launcher Data (download as text)

Begin job on node3 on Tue Feb 27 08:08:10 UTC 2007

IDJOB= 310995
IDBENCH= 20302
IDSOLVER= 115
FILE ID= node3/310995-1172563690

PBS_JOBID= 3971662

Free space on /tmp= 66553 MiB

SOLVER NAME= Hybrid1 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S1679085272-10-SAT.cnf
COMMAND LINE= /tmp/evaluation/310995-1172563690/Hybrid1 /tmp/evaluation/310995-1172563690/instance-310995-1172563690.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node3/watcher-310995-1172563690 -o ROOT/results/node3/solver-310995-1172563690 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310995-1172563690/Hybrid1 /tmp/evaluation/310995-1172563690/instance-310995-1172563690.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  9f390533642969c6fa22110646f07992

RANDOM SEED= 764858885

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node3.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		: 3000.241
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		: 3000.241
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:        810296 kB
Buffers:         69332 kB
Cached:        1039476 kB
SwapCached:          0 kB
Active:         464560 kB
Inactive:       698848 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        810296 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            6196 kB
Writeback:           0 kB
Mapped:          73548 kB
Slab:            67808 kB
Committed_AS:  1187164 kB
PageTables:       1656 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= 66553 MiB

End job on node3 on Tue Feb 27 08:08:12 UTC 2007