Trace number 2682575

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 0.1 fixedSAT 0.461929 0.461345

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/
namasivayam/tsp/normalized-t3002.11tsp11.1900566151.opb
MD5SUM204fb031707de903e8b5ddda711ba292
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 benchmark0.461929
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 661
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 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.00/0.03	c constraints 23/0 clauses 2684/0 units 0
0.00/0.03	c vars 231
0.39/0.43	c 0.39194 10.1172 1891 3658
0.39/0.43	s SATISFIABLE
0.39/0.43	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-2682575-1277475794/watcher-2682575-1277475794 -o /tmp/evaluation-result-2682575-1277475794/solver-2682575-1277475794 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682575-1277475794.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: 0.97 0.43 0.16 3/106 30207
/proc/meminfo: memFree=1805092/2059040 swapFree=4140112/4192956
[pid=30207] ppid=30205 vsize=2136 CPUtime=0
/proc/30207/stat : 30207 (pbct) R 30205 30207 30041 0 -1 4202496 246 0 0 0 0 0 0 0 20 0 1 0 88873882 2187264 166 1992294400 134512640 136421960 4286685248 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30207/statm: 534 166 144 467 0 65 0

[startup+0.056922 s]
/proc/loadavg: 0.97 0.43 0.16 3/106 30207
/proc/meminfo: memFree=1805092/2059040 swapFree=4140112/4192956
[pid=30207] ppid=30205 vsize=5528 CPUtime=0.05
/proc/30207/stat : 30207 (pbct) R 30205 30207 30041 0 -1 4202496 1073 0 0 0 5 0 0 0 20 0 1 0 88873882 5660672 993 1992294400 134512640 136421960 4286685248 18446744073709551615 135809629 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30207/statm: 1382 993 193 467 0 913 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 5528

[startup+0.100925 s]
/proc/loadavg: 0.97 0.43 0.16 3/106 30207
/proc/meminfo: memFree=1805092/2059040 swapFree=4140112/4192956
[pid=30207] ppid=30205 vsize=10100 CPUtime=0.09
/proc/30207/stat : 30207 (pbct) R 30205 30207 30041 0 -1 4202496 2172 0 0 0 9 0 0 0 20 0 1 0 88873882 10342400 2090 1992294400 134512640 136421960 4286685248 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30207/statm: 2525 2090 213 467 0 2056 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10100

[startup+0.300943 s]
/proc/loadavg: 0.97 0.43 0.16 3/106 30207
/proc/meminfo: memFree=1805092/2059040 swapFree=4140112/4192956
[pid=30207] ppid=30205 vsize=10228 CPUtime=0.29
/proc/30207/stat : 30207 (pbct) R 30205 30207 30041 0 -1 4202496 2213 0 0 0 27 2 0 0 20 0 1 0 88873882 10473472 2131 1992294400 134512640 136421960 4286685248 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30207/statm: 2557 2131 213 467 0 2088 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10228

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

[startup+0.400951 s]
/proc/loadavg: 0.97 0.43 0.16 3/106 30207
/proc/meminfo: memFree=1805092/2059040 swapFree=4140112/4192956
[pid=30207] ppid=30205 vsize=10356 CPUtime=0.39
/proc/30207/stat : 30207 (pbct) R 30205 30207 30041 0 -1 4202496 2233 0 0 0 36 3 0 0 20 0 1 0 88873882 10604544 2151 1992294400 134512640 136421960 4286685248 18446744073709551615 134861944 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30207/statm: 2589 2151 213 467 0 2120 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 10356

Child status: 0
Real time (s): 0.461345
CPU time (s): 0.461929
CPU user time (s): 0.416936
CPU system time (s): 0.044993
CPU usage (%): 100.127
Max. virtual memory (cumulated for all children) (KiB): 10356

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.416936
system time used= 0.044993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2268
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= 3

runsolver used 0.001999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node031 at 2010-06-25 16:23:14
IDJOB=2682575
IDBENCH=1323
IDSOLVER=1192
FILE ID=node031/2682575-1277475794
PBS_JOBID= 11190512
Free space on /tmp= 62420 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/tsp/normalized-t3002.11tsp11.1900566151.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682575-1277475794/watcher-2682575-1277475794 -o /tmp/evaluation-result-2682575-1277475794/solver-2682575-1277475794 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682575-1277475794.opb

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

MD5SUM BENCH= 204fb031707de903e8b5ddda711ba292
RANDOM SEED=461172341

node031.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		: 3000.219
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		: 3000.219
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	: 5599.53
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1805488 kB
Buffers:         46732 kB
Cached:         100700 kB
SwapCached:       5404 kB
Active:          64208 kB
Inactive:        96260 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1805488 kB
SwapTotal:     4192956 kB
SwapFree:      4140112 kB
Dirty:            2024 kB
Writeback:           0 kB
AnonPages:       11608 kB
Mapped:          12044 kB
Slab:            70864 kB
PageTables:       4240 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181852 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264964 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62420 MiB
End job on node031 at 2010-06-25 16:23:15