Trace number 364571

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 NameAnswerObjective functionCPU timeWall clock time
PBS4 2007-03-23OPT94 0.020995 0.0227819

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/submitted-PB05/
manquinho/primes-dimacs-cnf/normalized-jnh205.opb
MD5SUM337fa63ae90b2f1f31bfc9ba194017c3
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark94
Best CPU time to get the best result obtained on this benchmark0.020995
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 94
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 (download as text)

0.00/0.00	c PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00/0.00	c Solving /tmp/evaluation/364571-1177041083/instance-364571-1177041083.opb ......
0.00/0.01	c done parsing opb.
0.00/0.01	o 100
0.00/0.01	o 99
0.00/0.01	o 98
0.00/0.01	o 97
0.00/0.01	o 96
0.00/0.01	o 95
0.00/0.01	o 94
0.00/0.02	o 94
0.00/0.02	s OPTIMUM FOUND
0.00/0.02	c Total Run Time					0.008997
0.00/0.02	v -x1 x10 -x100 x101 -x102 x103 -x104 -x105 x106 x107 -x108 x109 x11 -x110 -x111 x112 -x113 x114 x115 -x116 -x117 x118 x119 -x12
0.00/0.02	v -x120 -x121 x122 -x123 x124 x125 -x126 x127 -x128 x129 x13 -x130 x131 -x132 -x133 x134 -x135 -x136 x137 -x138 -x139 -x14 x140
0.00/0.02	v x141 -x142 -x143 -x144 x145 -x146 x147 -x148 x149 -x15 -x150 x151 -x152 x153 -x154 x155 -x156 -x157 -x158 -x159 x16 x160 x161
0.00/0.02	v -x162 x163 -x164 x165 -x166 -x167 x168 x169 -x17 -x170 -x171 -x172 x173 -x174 -x175 x176 x177 -x178 x179 x18 -x180 x181 -x182
0.00/0.02	v x183 -x184 x185 -x186 -x187 x188 -x189 -x19 x190 x191 -x192 x193 -x194 x195 -x196 -x197 x198 -x199 x2 x20 x200 -x21 x22 x23 -x24
0.00/0.02	v -x25 x26 x27 -x28 x29 x3 -x30 x31 -x32 -x33 x34 -x35 x36 -x37 x38 -x39 -x4 x40 x41 -x42 -x43 x44 x45 -x46 -x47 x48 x49 x5 -x50 -x51
0.00/0.02	v x52 -x53 x54 x55 -x56 -x57 x58 x59 -x6 -x60 -x61 x62 x63 -x64 x65 -x66 -x67 -x68 x69 -x7 -x70 -x71 x72 x73 -x74 x75 -x76 -x77 x78
0.00/0.02	v -x79 x8 x80 x81 -x82 x83 -x84 x85 -x86 -x87 x88 x89 -x9 -x90 -x91 x92 x93 -x94 -x95 -x96 x97 -x98 x99

Verifier Data (download as text)

OK	94

Conversion Script Data (download as text)

/tmp/evaluation/364571-1177041083/instance-364571-1177041083.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node11/watcher-364571-1177041083 -o ROOT/results/node11/solver-364571-1177041083 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/364571-1177041083/PBS4 /tmp/evaluation/364571-1177041083/instance-364571-1177041083.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): 3600 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 0.96 0.98 3/77 18864
/proc/meminfo: memFree=1816880/2055920 swapFree=4150632/4192956
[pid=18864] ppid=18862 vsize=1324 CPUtime=0
/proc/18864/stat : 18864 (PBS4) R 18862 18864 17505 0 -1 4194304 136 0 0 0 0 0 0 0 18 0 1 0 145157305 1355776 118 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134590705 0 0 4096 0 0 0 0 17 1 0 0
/proc/18864/statm: 331 118 87 219 0 108 0

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

Child status: 0
Real time (s): 0.0227819
CPU time (s): 0.020995
CPU user time (s): 0.019996
CPU system time (s): 0.000999
CPU usage (%): 92.1563
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.019996
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= 182
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 0.000999 second user time and 0.009998 second system time

The end

Launcher Data (download as text)

Begin job on node11 on Fri Apr 20 03:51:24 UTC 2007

IDJOB= 364571
IDBENCH= 2131
IDSOLVER= 157
FILE ID= node11/364571-1177041083

PBS_JOBID= 4640097

Free space on /tmp= 66256 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/submitted-PB05/manquinho/primes-dimacs-cnf/normalized-jnh205.opb
COMMAND LINE= /tmp/evaluation/364571-1177041083/PBS4 /tmp/evaluation/364571-1177041083/instance-364571-1177041083.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node11/convwatcher-364571-1177041083 -o ROOT/results/node11/conversion-364571-1177041083 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/364571-1177041083/instance-364571-1177041083.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node11/watcher-364571-1177041083 -o ROOT/results/node11/solver-364571-1177041083 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/364571-1177041083/PBS4 /tmp/evaluation/364571-1177041083/instance-364571-1177041083.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  337fa63ae90b2f1f31bfc9ba194017c3

RANDOM SEED= 76308838

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node11.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		: 3000.235
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		: 3000.235
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:       1817416 kB
Buffers:         29380 kB
Cached:         122228 kB
SwapCached:      10912 kB
Active:          48752 kB
Inactive:       126852 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1817416 kB
SwapTotal:     4192956 kB
SwapFree:      4150632 kB
Dirty:            1196 kB
Writeback:           0 kB
Mapped:          31092 kB
Slab:            48332 kB
Committed_AS:  6215728 kB
PageTables:       1852 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= 66256 MiB

End job on node11 on Fri Apr 20 03:51:24 UTC 2007