Trace number 2669127

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 1.56076 1.56143

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/
uclid_pb_benchmarks/normalized-dlx1c.ucl.opb
MD5SUMd30cbdfbaf2c404a9c4e9217e33c734d
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
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 benchmark0.249961
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables6392
Total number of constraints18058
Number of constraints which are clauses17278
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints780
Minimum length of a constraint1
Maximum length of a constraint11
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 33
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 126
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
0.20/0.22	c constraints 780/0 clauses 17268/0 units 4
0.20/0.22	c vars 6392
1.20/1.21	c 1.11783 82.5703 670 3048
1.49/1.55	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-2669127-1276435498/watcher-2669127-1276435498 -o /tmp/evaluation-result-2669127-1276435498/solver-2669127-1276435498 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2669127-1276435498.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: 0.83 0.95 0.98 3/106 23767
/proc/meminfo: memFree=1821660/2059040 swapFree=4134520/4192956
[pid=23767] ppid=23765 vsize=2208 CPUtime=0
/proc/23767/stat : 23767 (pbct) R 23765 23767 22114 0 -1 4202496 255 0 0 0 0 0 0 0 19 0 1 0 19136215 2260992 178 1992294400 134512640 136485738 4287938560 18446744073709551615 135411158 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23767/statm: 552 178 156 482 0 68 0

[startup+0.107297 s]
/proc/loadavg: 0.83 0.95 0.98 3/106 23767
/proc/meminfo: memFree=1821660/2059040 swapFree=4134520/4192956
[pid=23767] ppid=23765 vsize=2472 CPUtime=0.1
/proc/23767/stat : 23767 (pbct) R 23765 23767 22114 0 -1 4202496 335 0 0 0 10 0 0 0 20 0 1 0 19136215 2531328 258 1992294400 134512640 136485738 4287938560 18446744073709551615 135688671 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23767/statm: 618 258 156 482 0 134 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2472

[startup+0.201306 s]
/proc/loadavg: 0.83 0.95 0.98 3/106 23767
/proc/meminfo: memFree=1821660/2059040 swapFree=4134520/4192956
[pid=23767] ppid=23765 vsize=3132 CPUtime=0.2
/proc/23767/stat : 23767 (pbct) R 23765 23767 22114 0 -1 4202496 473 0 0 0 20 0 0 0 20 0 1 0 19136215 3207168 396 1992294400 134512640 136485738 4287938560 18446744073709551615 135180937 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23767/statm: 783 396 157 482 0 299 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 3132

[startup+0.301317 s]
/proc/loadavg: 0.83 0.95 0.98 3/106 23767
/proc/meminfo: memFree=1821660/2059040 swapFree=4134520/4192956
[pid=23767] ppid=23765 vsize=13336 CPUtime=0.29
/proc/23767/stat : 23767 (pbct) R 23765 23767 22114 0 -1 4202496 2947 0 0 0 29 0 0 0 20 0 1 0 19136215 13656064 2870 1992294400 134512640 136485738 4287938560 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23767/statm: 3334 2871 191 482 0 2850 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13336

[startup+0.701357 s]
/proc/loadavg: 0.83 0.95 0.98 3/106 23767
/proc/meminfo: memFree=1821660/2059040 swapFree=4134520/4192956
[pid=23767] ppid=23765 vsize=44512 CPUtime=0.69
/proc/23767/stat : 23767 (pbct) R 23765 23767 22114 0 -1 4202496 11293 0 0 0 64 5 0 0 21 0 1 0 19136215 45580288 10641 1992294400 134512640 136485738 4287938560 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23767/statm: 11128 10641 196 482 0 10644 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 44512

[startup+1.50044 s]
/proc/loadavg: 0.83 0.95 0.98 2/107 23768
/proc/meminfo: memFree=1742912/2059040 swapFree=4134520/4192956
[pid=23767] ppid=23765 vsize=78944 CPUtime=1.49
/proc/23767/stat : 23767 (pbct) R 23765 23767 22114 0 -1 4202496 21624 0 0 0 140 9 0 0 22 0 1 0 19136215 80838656 18988 1992294400 134512640 136485738 4287938560 18446744073709551615 135839931 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23767/statm: 19736 18988 244 482 0 19252 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 78944

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

[startup+1.50044 s]
/proc/loadavg: 0.83 0.95 0.98 2/107 23768
/proc/meminfo: memFree=1742912/2059040 swapFree=4134520/4192956
[pid=23767] ppid=23765 vsize=78944 CPUtime=1.49
/proc/23767/stat : 23767 (pbct) R 23765 23767 22114 0 -1 4202496 21624 0 0 0 140 9 0 0 22 0 1 0 19136215 80838656 18988 1992294400 134512640 136485738 4287938560 18446744073709551615 135839931 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23767/statm: 19736 18988 244 482 0 19252 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 78944

Child status: 0
Real time (s): 1.56143
CPU time (s): 1.56076
CPU user time (s): 1.45778
CPU system time (s): 0.102984
CPU usage (%): 99.9573
Max. virtual memory (cumulated for all children) (KiB): 84548

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.45778
system time used= 0.102984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 21625
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= 9

runsolver used 0.002999 second user time and 0.016997 second system time

The end

Launcher Data

Begin job on node017 at 2010-06-13 15:24:58
IDJOB=2669127
IDBENCH=1478
IDSOLVER=1170
FILE ID=node017/2669127-1276435498
PBS_JOBID= 11173309
Free space on /tmp= 62368 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/normalized-dlx1c.ucl.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2669127-1276435498/watcher-2669127-1276435498 -o /tmp/evaluation-result-2669127-1276435498/solver-2669127-1276435498 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2669127-1276435498.opb

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

MD5SUM BENCH= d30cbdfbaf2c404a9c4e9217e33c734d
RANDOM SEED=1676535774

node017.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		: 3000.201
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	: 6000.40
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		: 3000.201
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	: 5599.51
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1822056 kB
Buffers:         35180 kB
Cached:         124180 kB
SwapCached:      11708 kB
Active:          97204 kB
Inactive:        76124 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1822056 kB
SwapTotal:     4192956 kB
SwapFree:      4134520 kB
Dirty:            2596 kB
Writeback:           0 kB
AnonPages:       12372 kB
Mapped:           9212 kB
Slab:            42000 kB
PageTables:       3912 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182988 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= 62368 MiB
End job on node017 at 2010-06-13 15:25:00