Trace number 2668991

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
PB/CT 0.1SAT 2.50362 2.50512

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/
namasivayam/tsp/normalized-t3002.11tsp11.1900559365.opb
MD5SUM924af7c450ed428ac078913fd23bc162
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
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 benchmark1.22981
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
Number of variables231
Total number of constraints2707
Number of constraints which are clauses2684
Number of constraints which are cardinality constraints (but not clauses)22
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint110
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 25
Number of bits of the biggest number in a constraint 5
Biggest sum of numbers in a constraint 691
Number of bits of the biggest sum of numbers10
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.00	c PB/CT 0.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.00/0.04	c constraints 23/0 clauses 2684/0 units 0
0.00/0.04	c vars 231
2.39/2.47	c 2.17967 10.457 2186 18744
2.39/2.47	s SATISFIABLE
2.39/2.47	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 -x201 -x202 -x203 -x204 -x205 -x206 -x207 x208 -x209 -x210 -x211 -x212 x213 -x214 -x215 -x216 -x217 -x218 -x219 -x220 -x221 -x222 -x223 -x224 -x225 x226 -x227 -x228 -x229 -x230 -x231

Verifier Data 

OK	0

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2668991-1276433077/watcher-2668991-1276433077 -o /tmp/evaluation-result-2668991-1276433077/solver-2668991-1276433077 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668991-1276433077.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: 0.92 0.98 0.99 3/106 22654
/proc/meminfo: memFree=1687768/2059040 swapFree=4192956/4192956
[pid=22654] ppid=22652 vsize=2208 CPUtime=0
/proc/22654/stat : 22654 (pbct) R 22652 22654 22517 0 -1 4202496 255 0 0 0 0 0 0 0 20 0 1 0 18911403 2260992 177 1992294400 134512640 136485738 4294145568 18446744073709551615 135416612 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22654/statm: 552 177 156 482 0 68 0

[startup+0.049988 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 22654
/proc/meminfo: memFree=1687768/2059040 swapFree=4192956/4192956
[pid=22654] ppid=22652 vsize=3928 CPUtime=0.04
/proc/22654/stat : 22654 (pbct) R 22652 22654 22517 0 -1 4202496 649 0 0 0 4 0 0 0 20 0 1 0 18911403 4022272 571 1992294400 134512640 136485738 4294145568 18446744073709551615 134651007 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22654/statm: 982 571 191 482 0 498 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 3928

[startup+0.101993 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 22654
/proc/meminfo: memFree=1687768/2059040 swapFree=4192956/4192956
[pid=22654] ppid=22652 vsize=10040 CPUtime=0.09
/proc/22654/stat : 22654 (pbct) R 22652 22654 22517 0 -1 4202496 2125 0 0 0 9 0 0 0 20 0 1 0 18911403 10280960 2045 1992294400 134512640 136485738 4294145568 18446744073709551615 135848600 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22654/statm: 2510 2045 208 482 0 2026 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10040

[startup+0.301015 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 22654
/proc/meminfo: memFree=1687768/2059040 swapFree=4192956/4192956
[pid=22654] ppid=22652 vsize=10304 CPUtime=0.29
/proc/22654/stat : 22654 (pbct) R 22652 22654 22517 0 -1 4202496 2231 0 0 0 26 3 0 0 20 0 1 0 18911403 10551296 2151 1992294400 134512640 136485738 4294145568 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22654/statm: 2576 2151 223 482 0 2092 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10304

[startup+0.70106 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 22654
/proc/meminfo: memFree=1687768/2059040 swapFree=4192956/4192956
[pid=22654] ppid=22652 vsize=10568 CPUtime=0.69
/proc/22654/stat : 22654 (pbct) R 22652 22654 22517 0 -1 4202496 2290 0 0 0 62 7 0 0 20 0 1 0 18911403 10821632 2210 1992294400 134512640 136485738 4294145568 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22654/statm: 2642 2210 223 482 0 2158 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 10568

[startup+1.50015 s]
/proc/loadavg: 0.92 0.98 0.99 2/107 22655
/proc/meminfo: memFree=1679576/2059040 swapFree=4192956/4192956
[pid=22654] ppid=22652 vsize=10704 CPUtime=1.49
/proc/22654/stat : 22654 (pbct) R 22652 22654 22517 0 -1 4202496 2305 0 0 0 133 16 0 0 22 0 1 0 18911403 10960896 2225 1992294400 134512640 136485738 4294145568 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22654/statm: 2676 2225 223 482 0 2192 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 10704

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

[startup+2.30024 s]
/proc/loadavg: 0.92 0.98 0.99 2/107 22655
/proc/meminfo: memFree=1679328/2059040 swapFree=4192956/4192956
[pid=22654] ppid=22652 vsize=10704 CPUtime=2.29
/proc/22654/stat : 22654 (pbct) R 22652 22654 22517 0 -1 4202496 2318 0 0 0 203 26 0 0 25 0 1 0 18911403 10960896 2238 1992294400 134512640 136485738 4294145568 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22654/statm: 2676 2238 223 482 0 2192 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 10704

[startup+2.50026 s]
/proc/loadavg: 0.92 0.98 0.99 2/107 22655
/proc/meminfo: memFree=1679328/2059040 swapFree=4192956/4192956
[pid=22654] ppid=22652 vsize=9660 CPUtime=2.49
/proc/22654/stat : 22654 (pbct) R 22652 22654 22517 0 -1 4202496 2344 0 0 0 220 29 0 0 25 0 1 0 18911403 9891840 2079 1992294400 134512640 136485738 4294145568 18446744073709551615 135844708 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22654/statm: 2415 2079 245 482 0 1931 0
Current children cumulated CPU time (s) 2.49
Current children cumulated vsize (KiB) 9660

Child status: 0
Real time (s): 2.50512
CPU time (s): 2.50362
CPU user time (s): 2.20466
CPU system time (s): 0.298954
CPU usage (%): 99.94
Max. virtual memory (cumulated for all children) (KiB): 10704

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.20466
system time used= 0.298954
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2345
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= 2
involuntary context switches= 3

runsolver used 0.008998 second user time and 0.017997 second system time

The end

Launcher Data 

Begin job on node005 at 2010-06-13 14:44:37
IDJOB=2668991
IDBENCH=1333
IDSOLVER=1170
FILE ID=node005/2668991-1276433077
PBS_JOBID= 11173316
Free space on /tmp= 62532 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/tsp/normalized-t3002.11tsp11.1900559365.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668991-1276433077/watcher-2668991-1276433077 -o /tmp/evaluation-result-2668991-1276433077/solver-2668991-1276433077 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668991-1276433077.opb

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

MD5SUM BENCH= 924af7c450ed428ac078913fd23bc162
RANDOM SEED=251879958

node005.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		: 3000.246
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	: 6000.49
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		: 3000.246
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:       1688296 kB
Buffers:         88284 kB
Cached:         155460 kB
SwapCached:          0 kB
Active:         159144 kB
Inactive:       143780 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1688296 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            1968 kB
Writeback:           0 kB
AnonPages:       59296 kB
Mapped:          15444 kB
Slab:            46028 kB
PageTables:       3936 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182256 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= 62532 MiB
End job on node005 at 2010-06-13 14:44:39