Trace number 2682827

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 NameAnswerobjective functionCPU timeWall clock time
PB/CT 0.1 fixedOPT93 0.083987 0.083836

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/submitted-PB05/
manquinho/primes-dimacs-cnf/normalized-jnh209.opb
MD5SUM9a114b4c3025a5b4bab0d53b11234eee
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark93
Best CPU time to get the best result obtained on this benchmark0.083987
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 93
Optimality of the best value was proved YES
Number of variables200
Total number of constraints900
Number of constraints which are clauses900
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint2
Maximum length of a constraint11
Number of terms in the objective function 200
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 200
Number of bits of the sum of numbers in the objective function 8
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 200
Number of bits of the biggest sum of numbers8
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data 

0.00/0.00	c PB/CT 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.01/0.01	c constraints 0/0 clauses 900/0 units 0
0.01/0.01	c vars 200
0.01/0.01	c objective 200 + 0
0.01/0.04	c 0.041993 6.22656 28 60
0.01/0.04	o 94
0.01/0.04	c 0.044993 6.37891 58 114
0.01/0.04	o 93
0.01/0.07	c 0.067989 6.37891 168 492
0.01/0.07	s OPTIMUM FOUND
0.01/0.07	v -x1 x2 -x3 x4 -x5 x6 -x7 -x8 -x9 x10 -x11 x12 -x13 x14 -x15 x16 -x17 -x18 -x19 x20 -x21 x22 -x23 x24 -x25 x26 x27 -x28 -x29 x30 -x31 x32 -x33 x34 -x35 -x36 x37 -x38 -x39 x40 -x41 x42 -x43 x44 -x45 x46 x47 -x48 -x49 x50 x51 -x52 x53 -x54 x55 -x56 x57 -x58 x59 -x60 -x61 x62 -x63 x64 -x65 -x66 x67 -x68 x69 -x70 -x71 x72 -x73 x74 x75 -x76 x77 -x78 -x79 x80 -x81 x82 x83 -x84 x85 -x86 x87 -x88 x89 -x90 -x91 x92 x93 -x94 -x95 x96 x97 -x98 x99 -x100 -x101 x102 -x103 x104 x105 -x106 x107 -x108 -x109 x110 -x111 x112 -x113 x114 -x115 x116 x117 -x118 x119 -x120 -x121 x122 -x123 -x124 x125 -x126 x127 -x128 -x129 x130 x131 -x132 x133 -x134 -x135 x136 x137 -x138 x139 -x140 -x141 x142 -x143 x144 x145 -x146 -x147 x148 x149 -x150 -x151 x152 x153 -x154 -x155 x156 x157 -x158 x159 -x160 -x161 x162 -x163 x164 x165 -x166 x167 -x168 -x169 x170 x171 -x172 -x173 x174 -x175 x176 x177 -x178 -x179 x180 x181 -x182 x183 -x184 -x185 x186 x187 -x188 x189 -x190 x191 -x192 -x193 -x194 x195 -x196 x197 -x198 -x199 -x200

Verifier Data 

OK	93

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2682827-1277481041/watcher-2682827-1277481041 -o /tmp/evaluation-result-2682827-1277481041/solver-2682827-1277481041 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682827-1277481041.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 0.99 0.91 3/106 28428
/proc/meminfo: memFree=1745508/2059040 swapFree=4140528/4192956
[pid=28428] ppid=28426 vsize=2136 CPUtime=0
/proc/28428/stat : 28428 (pbct) R 28426 28428 27972 0 -1 4202496 249 0 0 0 0 0 0 0 20 0 1 0 89395702 2187264 168 1992294400 134512640 136421960 4287725824 18446744073709551615 135809561 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28428/statm: 534 168 145 467 0 65 0

[startup+0.014178 s]
/proc/loadavg: 1.00 0.99 0.91 3/106 28428
/proc/meminfo: memFree=1745508/2059040 swapFree=4140528/4192956
[pid=28428] ppid=28426 vsize=2136 CPUtime=0.01
/proc/28428/stat : 28428 (pbct) R 28426 28428 27972 0 -1 4202496 253 0 0 0 1 0 0 0 20 0 1 0 89395702 2187264 172 1992294400 134512640 136421960 4287725824 18446744073709551615 135717557 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28428/statm: 534 172 145 467 0 65 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2136

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

[startup+0.014178 s]
/proc/loadavg: 1.00 0.99 0.91 3/106 28428
/proc/meminfo: memFree=1745508/2059040 swapFree=4140528/4192956
[pid=28428] ppid=28426 vsize=2136 CPUtime=0.01
/proc/28428/stat : 28428 (pbct) R 28426 28428 27972 0 -1 4202496 253 0 0 0 1 0 0 0 20 0 1 0 89395702 2187264 172 1992294400 134512640 136421960 4287725824 18446744073709551615 135717557 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28428/statm: 534 172 145 467 0 65 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2136

Child status: 0
Real time (s): 0.083836
CPU time (s): 0.083987
CPU user time (s): 0.077988
CPU system time (s): 0.005999
CPU usage (%): 100.18
Max. virtual memory (cumulated for all children) (KiB): 2136

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.077988
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1375
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= 1
involuntary context switches= 1

runsolver used 0.002999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node050 at 2010-06-25 17:50:41
IDJOB=2682827
IDBENCH=2121
IDSOLVER=1192
FILE ID=node050/2682827-1277481041
PBS_JOBID= 11190496
Free space on /tmp= 62380 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/submitted-PB05/manquinho/primes-dimacs-cnf/normalized-jnh209.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682827-1277481041/watcher-2682827-1277481041 -o /tmp/evaluation-result-2682827-1277481041/solver-2682827-1277481041 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682827-1277481041.opb

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

MD5SUM BENCH= 9a114b4c3025a5b4bab0d53b11234eee
RANDOM SEED=1757871561

node050.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/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		: 3000.215
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.43
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		: 3000.215
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.45
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1746036 kB
Buffers:         59936 kB
Cached:         153020 kB
SwapCached:       5664 kB
Active:          70916 kB
Inactive:       155440 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1746036 kB
SwapTotal:     4192956 kB
SwapFree:      4140528 kB
Dirty:            1920 kB
Writeback:           0 kB
AnonPages:       12040 kB
Mapped:          11988 kB
Slab:            64752 kB
PageTables:       4120 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181396 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62380 MiB
End job on node050 at 2010-06-25 17:50:41