Trace number 2682701

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 fixedUNSAT 1.38579 1.38662

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/
uclid_pb_benchmarks/normalized-elf.rf8.ucl.opb
MD5SUMe5e9e70aacd6f12ca1d11bb54ad048ed
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 benchmark0.105983
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables6059
Total number of constraints16684
Number of constraints which are clauses15940
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints744
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 34
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 127
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 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.19/0.20	c constraints 744/0 clauses 15885/0 units 22
0.19/0.20	c vars 6059
1.00/1.02	c 0.933858 78.75 44 119
1.29/1.37	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-2682701-1277476455/watcher-2682701-1277476455 -o /tmp/evaluation-result-2682701-1277476455/solver-2682701-1277476455 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682701-1277476455.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: 1.00 0.94 0.57 3/106 29767
/proc/meminfo: memFree=1804880/2059040 swapFree=4140556/4192956
[pid=29767] ppid=29765 vsize=2136 CPUtime=0
/proc/29767/stat : 29767 (pbct) R 29765 29767 29393 0 -1 4202496 245 0 0 0 0 0 0 0 18 0 1 0 88940868 2187264 165 1992294400 134512640 136421960 4293676496 18446744073709551615 135372660 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29767/statm: 534 165 144 467 0 65 0

[startup+0.0978019 s]
/proc/loadavg: 1.00 0.94 0.57 3/106 29767
/proc/meminfo: memFree=1804880/2059040 swapFree=4140556/4192956
[pid=29767] ppid=29765 vsize=2400 CPUtime=0.09
/proc/29767/stat : 29767 (pbct) R 29765 29767 29393 0 -1 4202496 326 0 0 0 9 0 0 0 20 0 1 0 88940868 2457600 246 1992294400 134512640 136421960 4293676496 18446744073709551615 135818225 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29767/statm: 600 246 144 467 0 131 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2400

[startup+0.100803 s]
/proc/loadavg: 1.00 0.94 0.57 3/106 29767
/proc/meminfo: memFree=1804880/2059040 swapFree=4140556/4192956
[pid=29767] ppid=29765 vsize=2532 CPUtime=0.09
/proc/29767/stat : 29767 (pbct) R 29765 29767 29393 0 -1 4202496 330 0 0 0 9 0 0 0 20 0 1 0 88940868 2592768 250 1992294400 134512640 136421960 4293676496 18446744073709551615 135161675 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29767/statm: 633 250 144 467 0 164 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2532

[startup+0.300817 s]
/proc/loadavg: 1.00 0.94 0.57 3/106 29767
/proc/meminfo: memFree=1804880/2059040 swapFree=4140556/4192956
[pid=29767] ppid=29765 vsize=15324 CPUtime=0.29
/proc/29767/stat : 29767 (pbct) R 29765 29767 29393 0 -1 4202496 3518 0 0 0 27 2 0 0 20 0 1 0 88940868 15691776 3438 1992294400 134512640 136421960 4293676496 18446744073709551615 134632335 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29767/statm: 3831 3438 187 467 0 3362 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 15324

[startup+0.700842 s]
/proc/loadavg: 1.00 0.94 0.57 3/106 29767
/proc/meminfo: memFree=1804880/2059040 swapFree=4140556/4192956
[pid=29767] ppid=29765 vsize=46736 CPUtime=0.69
/proc/29767/stat : 29767 (pbct) R 29765 29767 29393 0 -1 4202496 11910 0 0 0 63 6 0 0 20 0 1 0 88940868 47857664 11256 1992294400 134512640 136421960 4293676496 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29767/statm: 11684 11257 193 467 0 11215 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 46736

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

[startup+1.10887 s]
/proc/loadavg: 1.00 0.94 0.57 2/107 29768
/proc/meminfo: memFree=1731092/2059040 swapFree=4140556/4192956
[pid=29767] ppid=29765 vsize=75056 CPUtime=1.1
/proc/29767/stat : 29767 (pbct) R 29765 29767 29393 0 -1 4202496 20604 0 0 0 101 9 0 0 21 0 1 0 88940868 76857344 18027 1992294400 134512640 136421960 4293676496 18446744073709551615 134701458 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29767/statm: 18764 18027 236 467 0 18295 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 75056

[startup+1.30088 s]
/proc/loadavg: 1.00 0.94 0.57 2/107 29768
/proc/meminfo: memFree=1731092/2059040 swapFree=4140556/4192956
[pid=29767] ppid=29765 vsize=75056 CPUtime=1.29
/proc/29767/stat : 29767 (pbct) R 29765 29767 29393 0 -1 4202496 20604 0 0 0 120 9 0 0 22 0 1 0 88940868 76857344 18027 1992294400 134512640 136421960 4293676496 18446744073709551615 135801316 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29767/statm: 18764 18027 236 467 0 18295 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 75056

Child status: 0
Real time (s): 1.38662
CPU time (s): 1.38579
CPU user time (s): 1.2848
CPU system time (s): 0.100984
CPU usage (%): 99.9397
Max. virtual memory (cumulated for all children) (KiB): 80108

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.2848
system time used= 0.100984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 20605
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= 2

runsolver used 0.004999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node030 at 2010-06-25 16:34:15
IDJOB=2682701
IDBENCH=1455
IDSOLVER=1192
FILE ID=node030/2682701-1277476455
PBS_JOBID= 11190513
Free space on /tmp= 62492 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/normalized-elf.rf8.ucl.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682701-1277476455/watcher-2682701-1277476455 -o /tmp/evaluation-result-2682701-1277476455/solver-2682701-1277476455 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682701-1277476455.opb

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

MD5SUM BENCH= e5e9e70aacd6f12ca1d11bb54ad048ed
RANDOM SEED=1851067268

node030.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		: 3000.244
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	: 6000.48
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		: 3000.244
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	: 5599.52
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1805284 kB
Buffers:         41868 kB
Cached:         107304 kB
SwapCached:       5752 kB
Active:          65312 kB
Inactive:        97572 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1805284 kB
SwapTotal:     4192956 kB
SwapFree:      4140556 kB
Dirty:            2588 kB
Writeback:           0 kB
AnonPages:       11908 kB
Mapped:          12276 kB
Slab:            68940 kB
PageTables:       4168 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181720 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= 62492 MiB
End job on node030 at 2010-06-25 16:34:17