Trace number 1726002

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
SATzilla2009_C 2009-03-22SAT 0.010997 0.0110541

General information on the benchmark

Namecrafted/Medium/contest05/jarvisalo/
mod2-rand3bip-sat-230-2.sat05-2189.reshuffled-07.cnf
MD5SUM87d9c7ce297970bb210f40783f709fcc
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.010997
Satisfiable
(Un)Satisfiability was proved
Number of variables230
Number of clauses920
Sum of the clauses size2760
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3920
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 SATzilla is building models for class 2
0.00/0.01	c run presolver march_dl2004 for 5 seconds ... 
0.00/0.01	c Bin: Executing march_dl2004
0.00/0.01	c spawning binary file with 5 seconds ...
0.00/0.01	c child exited successfully
0.00/0.01	c march_dl2004 returned code 10.
0.00/0.01	s SATISFIABLE
0.00/0.01	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 0
0.00/0.01	c SATZILLA_TIME=0.010000

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1726002-1240708329/watcher-1726002-1240708329 -o /tmp/evaluation-result-1726002-1240708329/solver-1726002-1240708329 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/SATzilla2009_C HOME/instance-1726002-1240708329.cnf 

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: 1.50 1.74 1.59 3/65 20242
/proc/meminfo: memFree=1686408/2055920 swapFree=4181316/4192956
[pid=20242] ppid=20240 vsize=2056 CPUtime=0
/proc/20242/stat : 20242 (SATzilla2009_C) R 20240 20242 19932 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 98862976 2105344 112 1992294400 134512640 136149437 4294956208 18446744073709551615 135543087 0 0 4096 0 0 0 0 17 0 0 0
/proc/20242/statm: 514 112 96 399 0 111 0
[pid=20243] ppid=20242 vsize=640 CPUtime=0
/proc/20243/stat : 20243 (march_dl2004) R 20242 20242 19932 0 -1 4194304 100 0 0 0 0 0 0 0 18 0 1 0 98862976 655360 92 1992294400 134512640 134996440 4294956176 18446744073709551615 134518146 0 0 8392704 0 0 0 0 17 0 0 0
/proc/20243/statm: 160 92 57 118 0 39 0

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

Child status: 10
Real time (s): 0.0110541
CPU time (s): 0.010997
CPU user time (s): 0.009998
CPU system time (s): 0.000999
CPU usage (%): 99.4834
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.009998
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 324
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= 4
involuntary context switches= 1

runsolver used 0.002999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node79 at 2009-04-26 03:12:09
IDJOB=1726002
IDBENCH=24602
IDSOLVER=527
FILE ID=node79/1726002-1240708329
PBS_JOBID= 9186806
Free space on /tmp= 66164 MiB

SOLVER NAME= SATzilla2009_C 2009-03-22
BENCH NAME= SAT07/crafted/Medium/contest05/jarvisalo/mod2-rand3bip-sat-230-2.sat05-2189.reshuffled-07.cnf
COMMAND LINE= HOME/SATzilla2009_C BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1726002-1240708329/watcher-1726002-1240708329 -o /tmp/evaluation-result-1726002-1240708329/solver-1726002-1240708329 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/SATzilla2009_C HOME/instance-1726002-1240708329.cnf

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

MD5SUM BENCH= 87d9c7ce297970bb210f40783f709fcc
RANDOM SEED=1098870522

node79.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		: 3000.220
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		: 3000.220
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:       1686952 kB
Buffers:         39976 kB
Cached:         278608 kB
SwapCached:       5436 kB
Active:         157768 kB
Inactive:       168552 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1686952 kB
SwapTotal:     4192956 kB
SwapFree:      4181316 kB
Dirty:           31472 kB
Writeback:           0 kB
Mapped:          13420 kB
Slab:            28636 kB
Committed_AS:   358564 kB
PageTables:       1384 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= 66132 MiB
End job on node79 at 2009-04-26 03:12:10