Trace number 1522666

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
NCVWr 2009-03-22SAT 26.233 26.2394

General information on the benchmark

NameRANDOM/LARGE/3SAT/UNKNOWN/2000/
unif-k3-r4.2-v2000-c8400-S136987316-008.cnf
MD5SUMf6ddf1b0f08bcc31521c4b74db5ce22f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.330948
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 

26.18/26.23	c try 1 flip j 9507070
26.18/26.23	c A solution is found
26.18/26.23	s SATISFIABLE
26.18/26.23	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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26.18/26.23	v 0 
26.18/26.23	c Done (mycputime is 26.200 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-1522666-1238387759/watcher-1522666-1238387759 -o /tmp/evaluation-result-1522666-1238387759/solver-1522666-1238387759 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/NCVWr HOME/instance-1522666-1238387759.cnf 935063621 

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: 1.08 1.02 1.01 3/76 26929
/proc/meminfo: memFree=1758984/2055920 swapFree=4173760/4192956
[pid=26929] ppid=26927 vsize=411884 CPUtime=0
/proc/26929/stat : 26929 (NCVWr) R 26927 26929 26713 0 -1 4194304 124 0 0 0 0 0 0 0 18 0 1 0 1111437128 421769216 109 1992294400 134512640 135113558 4294956208 18446744073709551615 134619510 0 0 4096 0 0 0 0 17 1 0 0
/proc/26929/statm: 102971 111 55 146 0 101846 0

[startup+0.0288759 s]
/proc/loadavg: 1.08 1.02 1.01 3/76 26929
/proc/meminfo: memFree=1758984/2055920 swapFree=4173760/4192956
[pid=26929] ppid=26927 vsize=412408 CPUtime=0.02
/proc/26929/stat : 26929 (NCVWr) R 26927 26929 26713 0 -1 4194304 290 0 0 0 2 0 0 0 18 0 1 0 1111437128 422305792 274 1992294400 134512640 135113558 4294956208 18446744073709551615 134525419 0 0 4096 0 0 0 0 17 1 0 0
/proc/26929/statm: 103102 278 55 146 0 101977 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 412408

[startup+0.101881 s]
/proc/loadavg: 1.08 1.02 1.01 3/76 26929
/proc/meminfo: memFree=1758984/2055920 swapFree=4173760/4192956
[pid=26929] ppid=26927 vsize=416708 CPUtime=0.09
/proc/26929/stat : 26929 (NCVWr) R 26927 26929 26713 0 -1 4194304 472 0 0 0 9 0 0 0 18 0 1 0 1111437128 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134532650 0 0 4096 0 0 0 0 17 1 0 0
/proc/26929/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 416708

[startup+0.301897 s]
/proc/loadavg: 1.08 1.02 1.01 3/76 26929
/proc/meminfo: memFree=1758984/2055920 swapFree=4173760/4192956
[pid=26929] ppid=26927 vsize=416708 CPUtime=0.29
/proc/26929/stat : 26929 (NCVWr) R 26927 26929 26713 0 -1 4194304 472 0 0 0 29 0 0 0 19 0 1 0 1111437128 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134533939 0 0 4096 0 0 0 0 17 1 0 0
/proc/26929/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 416708

[startup+0.701929 s]
/proc/loadavg: 1.08 1.02 1.01 3/76 26929
/proc/meminfo: memFree=1758984/2055920 swapFree=4173760/4192956
[pid=26929] ppid=26927 vsize=416708 CPUtime=0.69
/proc/26929/stat : 26929 (NCVWr) R 26927 26929 26713 0 -1 4194304 472 0 0 0 69 0 0 0 22 0 1 0 1111437128 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134531207 0 0 4096 0 0 0 0 17 1 0 0
/proc/26929/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 416708

[startup+1.502 s]
/proc/loadavg: 1.08 1.02 1.01 2/77 26930
/proc/meminfo: memFree=1757184/2055920 swapFree=4173760/4192956
[pid=26929] ppid=26927 vsize=416708 CPUtime=1.49
/proc/26929/stat : 26929 (NCVWr) R 26927 26929 26713 0 -1 4194304 472 0 0 0 149 0 0 0 25 0 1 0 1111437128 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134534151 0 0 4096 0 0 0 0 17 1 0 0
/proc/26929/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 416708

[startup+3.10113 s]
/proc/loadavg: 1.08 1.02 1.01 2/77 26930
/proc/meminfo: memFree=1756928/2055920 swapFree=4173760/4192956
[pid=26929] ppid=26927 vsize=416708 CPUtime=3.09
/proc/26929/stat : 26929 (NCVWr) R 26927 26929 26713 0 -1 4194304 472 0 0 0 309 0 0 0 25 0 1 0 1111437128 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134534263 0 0 4096 0 0 0 0 17 1 0 0
/proc/26929/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 416708

[startup+6.3014 s]
/proc/loadavg: 1.07 1.02 1.00 2/77 26930
/proc/meminfo: memFree=1756928/2055920 swapFree=4173760/4192956
[pid=26929] ppid=26927 vsize=416708 CPUtime=6.29
/proc/26929/stat : 26929 (NCVWr) R 26927 26929 26713 0 -1 4194304 472 0 0 0 629 0 0 0 25 0 1 0 1111437128 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134531748 0 0 4096 0 0 0 0 17 1 0 0
/proc/26929/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 416708

[startup+12.7019 s]
/proc/loadavg: 1.07 1.02 1.00 2/77 26930
/proc/meminfo: memFree=1756992/2055920 swapFree=4173760/4192956
[pid=26929] ppid=26927 vsize=416708 CPUtime=12.69
/proc/26929/stat : 26929 (NCVWr) R 26927 26929 26713 0 -1 4194304 472 0 0 0 1269 0 0 0 25 0 1 0 1111437128 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134533681 0 0 4096 0 0 0 0 17 1 0 0
/proc/26929/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 416708

[startup+25.502 s]
/proc/loadavg: 1.05 1.01 1.00 2/77 26930
/proc/meminfo: memFree=1757184/2055920 swapFree=4173760/4192956
[pid=26929] ppid=26927 vsize=416708 CPUtime=25.48
/proc/26929/stat : 26929 (NCVWr) R 26927 26929 26713 0 -1 4194304 472 0 0 0 2548 0 0 0 25 0 1 0 1111437128 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134532230 0 0 4096 0 0 0 0 17 1 0 0
/proc/26929/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 416708

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

[startup+25.901 s]
/proc/loadavg: 1.05 1.01 1.00 2/77 26930
/proc/meminfo: memFree=1757184/2055920 swapFree=4173760/4192956
[pid=26929] ppid=26927 vsize=416708 CPUtime=25.88
/proc/26929/stat : 26929 (NCVWr) R 26927 26929 26713 0 -1 4194304 472 0 0 0 2588 0 0 0 25 0 1 0 1111437128 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134531784 0 0 4096 0 0 0 0 17 1 0 0
/proc/26929/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 25.88
Current children cumulated vsize (KiB) 416708

[startup+26.1011 s]
/proc/loadavg: 1.05 1.01 1.00 2/77 26930
/proc/meminfo: memFree=1757184/2055920 swapFree=4173760/4192956
[pid=26929] ppid=26927 vsize=416708 CPUtime=26.08
/proc/26929/stat : 26929 (NCVWr) R 26927 26929 26713 0 -1 4194304 472 0 0 0 2608 0 0 0 25 0 1 0 1111437128 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134530214 0 0 4096 0 0 0 0 17 1 0 0
/proc/26929/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 26.08
Current children cumulated vsize (KiB) 416708

[startup+26.2011 s]
/proc/loadavg: 1.05 1.01 1.00 2/77 26930
/proc/meminfo: memFree=1757184/2055920 swapFree=4173760/4192956
[pid=26929] ppid=26927 vsize=416708 CPUtime=26.18
/proc/26929/stat : 26929 (NCVWr) R 26927 26929 26713 0 -1 4194304 472 0 0 0 2618 0 0 0 25 0 1 0 1111437128 426708992 456 1992294400 134512640 135113558 4294956208 18446744073709551615 134531919 0 0 4096 0 0 0 0 17 1 0 0
/proc/26929/statm: 104177 456 58 146 0 103052 0
Current children cumulated CPU time (s) 26.18
Current children cumulated vsize (KiB) 416708

Child status: 10
Real time (s): 26.2394
CPU time (s): 26.233
CPU user time (s): 26.225
CPU system time (s): 0.007998
CPU usage (%): 99.9758
Max. virtual memory (cumulated for all children) (KiB): 416708

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 26.225
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 487
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= 73

runsolver used 0.028995 second user time and 0.079987 second system time

The end

Launcher Data 

Begin job on node65 at 2009-03-30 06:35:59
IDJOB=1522666
IDBENCH=70286
IDSOLVER=531
FILE ID=node65/1522666-1238387759
PBS_JOBID= 9061321
Free space on /tmp= 66316 MiB

SOLVER NAME= NCVWr 2009-03-22
BENCH NAME= SAT09/RANDOM/LARGE/3SAT/UNKNOWN/2000/unif-k3-r4.2-v2000-c8400-S136987316-008.cnf
COMMAND LINE= HOME/NCVWr BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1522666-1238387759/watcher-1522666-1238387759 -o /tmp/evaluation-result-1522666-1238387759/solver-1522666-1238387759 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/NCVWr HOME/instance-1522666-1238387759.cnf 935063621

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

MD5SUM BENCH= f6ddf1b0f08bcc31521c4b74db5ce22f
RANDOM SEED=935063621

node65.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		: 3000.231
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		: 3000.231
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:       1759400 kB
Buffers:         57188 kB
Cached:         151640 kB
SwapCached:       9792 kB
Active:          55308 kB
Inactive:       164828 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1759400 kB
SwapTotal:     4192956 kB
SwapFree:      4173760 kB
Dirty:            4912 kB
Writeback:           0 kB
Mapped:          16952 kB
Slab:            61112 kB
Committed_AS:  3298488 kB
PageTables:       2316 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= 66312 MiB
End job on node65 at 2009-03-30 06:36:26