Trace number 39407

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 NameAnswerCPU timeWall clock time
bsolo 2006/05SAT 1.46978 1.49755

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/
prestwich/armies/normalized-army8.9bt.opb
MD5SUM41a419a7ef36b132b62f2564e794a725
Bench CategorySATUNSAT-SMALLINT-LIN (no optimisation, small integers, linear constraints)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark0
Best CPU time to get the best result obtained on this benchmark0.045992
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
Number of variables220
Total number of constraints470
Number of constraints which are clauses333
Number of constraints which are cardinality constraints (but not clauses)2
Number of constraints which are nor clauses,nor cardinality constraints135
Minimum length of a constraint1
Maximum length of a constraint64
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 9
Number of bits of the biggest number in a constraint 4
Biggest sum of numbers in a constraint 73
Number of bits of the biggest sum of numbers7
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.00	c Time Limit set via PBTIMEOUT to 1800
0.03	c INFO: OSL Context initialized.
0.05	c Initial problem consists of 220 variables and 470 constraints.
0.05	c Using non-optimization problem switches.
0.05	c No problem reductions applied in OPT. instance.
0.05	c	preprocess terminated. Elapsed time: 0.022
0.05	c After prepocess the problem consists of 207 variables and 443 constraints.
0.07	c Restart #1 #Var: 205 LB: 0 @ 0.045
0.11	c Restart #2 #Var: 205 LB: 0 @ 0.088
0.20	c Restart #3 #Var: 205 LB: 0 @ 0.175
0.29	c Restart #4 #Var: 203 LB: 0 @ 0.269
0.49	c Restart #5 #Var: 201 LB: 0 @ 0.462
0.67	c Restart #6 #Var: 200 LB: 0 @ 0.647
0.94	c Restart #7 #Var: 200 LB: 0 @ 0.915
1.40	c Restart #8 #Var: 200 LB: 0 @ 1.374
1.49	c Sol. found (all assignments made)...
1.49	o 0
1.49	c NEW SOLUTION FOUND: 0 @ 1.466
1.49	s SATISFIABLE
1.49	c Cost: 0
1.49	v x1 -x3 x5 -x7 x9 -x11 -x13 -x15 -x17 -x19 -x21 -x23 -x25 -x27 -x29 -x31 x33 -x35 x37 -x39 x41 -x43 -x45 -x47 x49 x51 -x53 -x55 -x57
1.49	v -x59 -x61 -x63 -x65 -x67 -x69 -x71 -x73 -x75 -x77 -x79 x81 -x83 -x85 -x87 -x89 -x91 -x93 -x95 -x97 -x99 -x101 -x103 -x105 -x107
1.49	v -x109 -x111 -x113 -x115 -x117 -x119 -x121 -x123 -x125 -x127 -x2 -x4 -x6 -x8 -x10 -x12 -x14 -x16 -x18 -x20 -x22 -x24 -x26 -x28
1.49	v x30 x32 -x34 -x36 -x38 -x40 -x42 -x44 -x46 -x48 -x50 -x52 -x54 -x56 -x58 -x60 -x62 -x64 -x66 -x68 -x70 x72 -x74 x76 -x78 x80 -x82
1.49	v -x84 -x86 -x88 -x90 -x92 -x94 -x96 -x98 -x100 -x102 -x104 -x106 x108 -x110 x112 -x114 -x116 -x118 x120 -x122 -x124 x126 -x128
1.49	v x130 -x129 -x132 x131 x134 -x133 x136 -x135 -x138 x137 x140 -x139 -x142 x141 -x144 x143 x146 -x145 x148 -x147 x150 -x149 -x152
1.49	v x151 x154 -x153 -x156 x155 -x158 x157 -x160 x159 x162 -x161 -x164 x163 x166 -x165 x168 -x167 -x170 x169 x172 -x171 -x174 -x173
1.49	v -x176 -x175 x178 -x177 -x180 -x179 x182 -x181 x184 -x183 x186 -x185 x188 -x187 x190 -x189 -x192 x191 -x194 x193 -x196 x195
1.49	v -x198 x197 -x200 x199 -x202 -x201 -x204 x203 -x206 -x205 -x208 -x207 -x210 x209 -x212 x211 x214 -x213 -x216 x215 x218 -x217
1.49	v -x220 x219
1.49	c Exit Code: 10
1.49	c Total time: 1.466 s

Verifier Data (download as text)

OK	0

Watcher Data (download as text)

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1830 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGKILL): 1843200 Kb
Enforcing VSIZE limit: 1887436800 bytes
runsolver version 3.0.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node64/watcher-39407-1149204824 -o ROOT/results/node64/solver-39407-1149204824 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node64/39407-1149204824/instance-39407-1149204824.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.08 0.02 0.18 2/64 20394
/proc/meminfo: memFree=1712008/2055920 swapFree=4192956/4192956
[pid=20394] ppid=20392 vsize=4664 CPUtime=0
/proc/20394/stat : 20394 (bsolo) R 20392 20394 20349 0 -1 0 155 0 0 0 0 0 0 0 19 0 1 0 22473688 4775936 135 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 6929684 0 0 4096 0 0 0 0 17 1 0 0
/proc/20394/statm: 1166 135 105 55 0 46 0

Child status: 10
Real time (s): 1.49755
CPU time (s): 1.46978
CPU user time (s): 1.45378
CPU system time (s): 0.015997
CPU usage (%): 98.1451
Max. virtual memory (cumulated for all children) (Kb): 0

Launcher Data (download as text)

Begin job on node64 on Thu Jun  1 23:33:44 UTC 2006


FILE ID= 39407-1149204824

PBS_JOBID= 293040

BENCH NAME= ROOT/tmp/node64/39407-1149204824/instance-39407-1149204824.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node64/39407-1149204824/instance-39407-1149204824.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node64/watcher-39407-1149204824 -o ROOT/results/node64/solver-39407-1149204824 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node64/39407-1149204824/instance-39407-1149204824.opb

MD5SUM SOLVER= 05cada221eb1efaaae980ebc7509e7e8
MD5SUM BENCH=  41a419a7ef36b132b62f2564e794a725

RANDOM SEED= 21862138


/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		: 3000.219
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		: 3000.219
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:       1712216 kB
Buffers:         25332 kB
Cached:         241704 kB
SwapCached:          0 kB
Active:          82312 kB
Inactive:       199180 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1712216 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:             176 kB
Writeback:           0 kB
Mapped:          24904 kB
Slab:            48156 kB
Committed_AS:   111996 kB
PageTables:       1476 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node64 on Thu Jun  1 23:33:46 UTC 2006