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 in four parts:
  1. 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 provide some useful information on the computer.
  2. 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 !
  3. 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 1200 seconds. 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 1230 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (900Mb).
    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.
  4. 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.

General information on the benchmark

Namesubmitted/manquinho/primes-dimacs-cnf/normalized-jnh301.opb
MD5SUM6e0331df7389e344a07566dfc029d495
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 95
Optimality of the best value was proved YES
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
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark0.120981
Number of variables200
Total number of constraints1000
Number of constraints which are clauses1000
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 constraint14

Trace number 9618

Launcher Data

LAUNCH ON wulflinc7 THE 2005-09-23 14:48:32 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8383 boxname=wulflinc7 idbench=179 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  6e0331df7389e344a07566dfc029d495  /oldhome/oroussel/tmp/wulflinc7/normalized-jnh301.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc7/normalized-jnh301.opb
IDLAUNCH: 8383
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.220
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.220
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 899.07

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        930880 kB
Buffers:         11748 kB
Cached:          75156 kB
SwapCached:          0 kB
Active:          45496 kB
Inactive:        44348 kB
HighTotal:      131008 kB
HighFree:        51996 kB
LowTotal:       903652 kB
LowFree:        878884 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6972 kB
Slab:             8432 kB
Committed_AS:    63656 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 14:48:35 (client local time) WITH STATUS 30 IN 3.03454 SECONDS
stats: 8383 0 3.03454 30

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 100
c small objective detected
c CONFLICT during preprocess 
c [startup+0.815704 s]  setting bit 7 to 0
c [startup+1.71398 s]  setting bit 6 to 0
c [startup+2.37499 s]  setting bit 5 to 0
c [startup+2.5242 s]  setting bit 4 to 0
c [startup+2.68218 s]  setting bit 3 to 0
c got solution with objective value: 95
c [startup+2.79458 s]  setting bit 2 to 1
c [startup+2.90193 s]  setting bit 1 to 0
c [startup+3.02304 s]  setting bit 0 to 0
s OPTIMUM FOUND
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 -x120 -x121 x122 -x123 x124 -x125 -x126 -x127 x128 -x129 -x13 x130 -x131 x132 -x133 x134 -x135 x136 -x137 x138 -x139 x14 -x140 -x141 x142 -x143 x144 x145 -x146 x147 -x148 -x149 -x15 x150 -x151 x152 x153 -x154 -x155 x156 x157 -x158 -x159 x16 -x160 -x161 x162 -x163 x164 x165 -x166 -x167 x168 x169 -x17 -x170 x171 -x172 x173 -x174 -x175 x176 x177 -x178 -x179 x18 x180 x181 -x182 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 -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 -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 -x79 -x8 x80 x81 -x82 x83 -x84 x85 -x86 x87 -x88 x89 -x9 -x90 -x91 x92 -x93 x94 -x95 x96 x97 -x98 -x99

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/8502/stat): 8502 (pb2sat) R 8501 8502 4059 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21044024 1527808 2 4294967295 134512640 135987407 3221224576 3221224576 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8502/statm): 373 2 364 364 0 9 0
[pid=8502] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc7/normalized-jnh301.opb
One traced child (pid=8502) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 3.05712
CPU time (s): 3.03454
CPU user time (s): 2.96055
CPU system time (s): 0.073988
CPU usage (%): 99.2614
Max. virtual memory (cumulated for all children) (Kb): 0

Verifier Data

Verifier:	OK	95