Trace number 2685475

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 0.1UNSAT 1.43778 1.43771

General information on the benchmark

Name/DEC-SMALLINT-LIN/oliveras/j60/
normalized-j603_2-unsat.opb
MD5SUMa21481d09c6e372fceb7a960f40ed463
Bench CategoryDEC-SMALLINT-LIN (no optimisation, small integers, linear constraints)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark0.100984
Has Objective FunctionNO
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables8418
Total number of constraints26241
Number of constraints which are clauses25969
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints272
Minimum length of a constraint1
Maximum length of a constraint18
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 23
Number of bits of the biggest number in a constraint 5
Biggest sum of numbers in a constraint 119
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 

0.00/0.00	c PB/CT 0.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.19/0.27	c constraints 272/0 clauses 25613/0 units 216
0.19/0.27	c vars 8418
0.99/1.06	c 0.98085 83.7578 0 0
1.39/1.43	s UNSATISFIABLE

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2685475-1278441392/watcher-2685475-1278441392 -o /tmp/evaluation-result-2685475-1278441392/solver-2685475-1278441392 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2685475-1278441392.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: 0.99 1.00 1.00 3/106 19727
/proc/meminfo: memFree=1438896/2059040 swapFree=4192956/4192956
[pid=19727] ppid=19725 vsize=2208 CPUtime=0
/proc/19727/stat : 19727 (pbct) R 19725 19727 19102 0 -1 4202496 258 0 0 0 0 0 0 0 20 0 1 0 12346395 2260992 181 1992294400 134512640 136485738 4292192256 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/19727/statm: 552 181 157 482 0 68 0

[startup+0.0157099 s]
/proc/loadavg: 0.99 1.00 1.00 3/106 19727
/proc/meminfo: memFree=1438896/2059040 swapFree=4192956/4192956
[pid=19727] ppid=19725 vsize=2208 CPUtime=0.01
/proc/19727/stat : 19727 (pbct) R 19725 19727 19102 0 -1 4202496 265 0 0 0 1 0 0 0 20 0 1 0 12346395 2260992 188 1992294400 134512640 136485738 4292192256 18446744073709551615 135297581 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/19727/statm: 552 188 157 482 0 68 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2208

[startup+0.101721 s]
/proc/loadavg: 0.99 1.00 1.00 3/106 19727
/proc/meminfo: memFree=1438896/2059040 swapFree=4192956/4192956
[pid=19727] ppid=19725 vsize=2604 CPUtime=0.09
/proc/19727/stat : 19727 (pbct) R 19725 19727 19102 0 -1 4202496 349 0 0 0 9 0 0 0 20 0 1 0 12346395 2666496 272 1992294400 134512640 136485738 4292192256 18446744073709551615 135411149 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/19727/statm: 651 273 157 482 0 167 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2604

[startup+0.300741 s]
/proc/loadavg: 0.99 1.00 1.00 3/106 19727
/proc/meminfo: memFree=1438896/2059040 swapFree=4192956/4192956
[pid=19727] ppid=19725 vsize=7524 CPUtime=0.29
/proc/19727/stat : 19727 (pbct) R 19725 19727 19102 0 -1 4202496 1559 0 0 0 29 0 0 0 20 0 1 0 12346395 7704576 1482 1992294400 134512640 136485738 4292192256 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/19727/statm: 1881 1484 191 482 0 1397 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7524

[startup+0.700784 s]
/proc/loadavg: 0.99 1.00 1.00 3/106 19727
/proc/meminfo: memFree=1438896/2059040 swapFree=4192956/4192956
[pid=19727] ppid=19725 vsize=46832 CPUtime=0.69
/proc/19727/stat : 19727 (pbct) R 19725 19727 19102 0 -1 4202496 11810 0 0 0 65 4 0 0 21 0 1 0 12346395 47955968 11171 1992294400 134512640 136485738 4292192256 18446744073709551615 134651003 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/19727/statm: 11708 11171 196 482 0 11224 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 46832

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

[startup+1.10883 s]
/proc/loadavg: 0.99 1.00 1.00 2/107 19728
/proc/meminfo: memFree=1359528/2059040 swapFree=4192956/4192956
[pid=19727] ppid=19725 vsize=80840 CPUtime=1.09
/proc/19727/stat : 19727 (pbct) R 19725 19727 19102 0 -1 4202496 21936 0 0 0 102 7 0 0 22 0 1 0 12346395 82780160 19282 1992294400 134512640 136485738 4292192256 18446744073709551615 134673556 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/19727/statm: 20210 19282 230 482 0 19726 0
Current children cumulated CPU time (s) 1.09
Current children cumulated vsize (KiB) 80840

[startup+1.30085 s]
/proc/loadavg: 0.99 1.00 1.00 2/107 19728
/proc/meminfo: memFree=1359528/2059040 swapFree=4192956/4192956
[pid=19727] ppid=19725 vsize=79040 CPUtime=1.29
/proc/19727/stat : 19727 (pbct) R 19725 19727 19102 0 -1 4202496 21936 0 0 0 122 7 0 0 22 0 1 0 12346395 80936960 18939 1992294400 134512640 136485738 4292192256 18446744073709551615 135839940 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/19727/statm: 19760 18939 230 482 0 19276 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 79040

[startup+1.40086 s]
/proc/loadavg: 0.99 1.00 1.00 2/107 19728
/proc/meminfo: memFree=1359528/2059040 swapFree=4192956/4192956
[pid=19727] ppid=19725 vsize=74076 CPUtime=1.39
/proc/19727/stat : 19727 (pbct) R 19725 19727 19102 0 -1 4202496 21937 0 0 0 131 8 0 0 22 0 1 0 12346395 75853824 18235 1992294400 134512640 136485738 4292192256 18446744073709551615 135839931 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/19727/statm: 18519 18235 231 482 0 18035 0
Current children cumulated CPU time (s) 1.39
Current children cumulated vsize (KiB) 74076

Child status: 0
Real time (s): 1.43771
CPU time (s): 1.43778
CPU user time (s): 1.34879
CPU system time (s): 0.088986
CPU usage (%): 100.005
Max. virtual memory (cumulated for all children) (KiB): 85376

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.34879
system time used= 0.088986
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 21939
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= 8

runsolver used 0.005999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node047 at 2010-07-06 20:36:32
IDJOB=2685475
IDBENCH=76117
IDSOLVER=1170
FILE ID=node047/2685475-1278441392
PBS_JOBID= 11233481
Free space on /tmp= 62476 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB10/normalized-PB10/DEC-SMALLINT-LIN/oliveras/j60/normalized-j603_2-unsat.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2685475-1278441392/watcher-2685475-1278441392 -o /tmp/evaluation-result-2685475-1278441392/solver-2685475-1278441392 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2685475-1278441392.opb

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

MD5SUM BENCH= a21481d09c6e372fceb7a960f40ed463
RANDOM SEED=976842275

node047.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		: 3000.248
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		: 3000.248
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:       1439300 kB
Buffers:        110120 kB
Cached:         377152 kB
SwapCached:          0 kB
Active:         189076 kB
Inactive:       358108 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1439300 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            2932 kB
Writeback:           0 kB
AnonPages:       59796 kB
Mapped:          14428 kB
Slab:            50508 kB
PageTables:       4240 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180780 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= 62476 MiB
End job on node047 at 2010-07-06 20:36:34