Trace number 2661315

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
SAT4J PB CuttingPlanes 2.2.0 2010-05-26UNSAT 0.751884 0.521115

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/
submitted-PB06/roussel/normalized-pigeon-cardinality-35-30.opb
MD5SUMa451a3aa708ebb54c76171e0e43da9df
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 benchmark0.05999
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables1050
Total number of constraints65
Number of constraints which are clauses35
Number of constraints which are cardinality constraints (but not clauses)30
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint30
Maximum length of a constraint35
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 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 36
Number of bits of the biggest sum of numbers6
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.08/0.14	c SAT4J: a SATisfiability library for Java (c) 2004-2010 Daniel Le Berre
0.08/0.14	c This is free software under the dual EPL/GNU LGPL licenses.
0.08/0.14	c See www.sat4j.org for details.
0.08/0.15	c version 2.2.0.v20100526
0.08/0.15	c java.runtime.name	Java(TM) SE Runtime Environment
0.08/0.15	c java.vm.name		Java HotSpot(TM) Server VM
0.08/0.15	c java.vm.version	11.2-b01
0.08/0.15	c java.vm.vendor	Sun Microsystems Inc.
0.08/0.15	c sun.arch.data.model	32
0.08/0.15	c java.version		1.6.0_12
0.08/0.15	c os.name		Linux
0.08/0.15	c os.version		2.6.18-164.el5
0.08/0.15	c os.arch		i386
0.08/0.15	c Free memory 		1393557488
0.08/0.15	c Max memory 		1395916800
0.08/0.16	c Total memory 		1395916800
0.08/0.16	c Number of processors 	2
0.21/0.22	c Pseudo Boolean Optimization
0.21/0.22	c Cutting planes based inference (org.sat4j.pb.core.PBSolverCP)
0.21/0.22	c --- Begin Solver configuration ---
0.21/0.22	c Stops conflict analysis at the first Unique Implication Point
0.21/0.22	c org.sat4j.pb.constraints.PBMaxClauseCardConstrDataStructure@16fd0b7
0.21/0.22	c Learn all clauses as in MiniSAT
0.21/0.22	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.21/0.22	c VSIDS like heuristics from MiniSAT using a heap phase appearing in latest learned clause taking into account the objective function
0.21/0.22	c No reason simplification
0.21/0.22	c Armin Biere (Picosat) restarts strategy
0.21/0.22	c Glucose learned constraints deletion strategy
0.21/0.22	c timeout=2147483s
0.21/0.22	c DB Simplification allowed=false
0.21/0.22	c --- End Solver configuration ---
0.21/0.22	c solving HOME/instance-2661315-1276581807.opb
0.21/0.22	c reading problem ... 
0.34/0.38	c ... done. Wall clock time 0.162s.
0.34/0.38	c #vars     1050
0.34/0.38	c #constraints  65
0.34/0.38	c constraints type 
0.34/0.38	c org.sat4j.pb.constraints.pb.OriginalHTClausePB => 35
0.34/0.38	c org.sat4j.pb.constraints.pb.MinWatchCardPB => 30
0.54/0.49	c starts		: 1
0.54/0.49	c conflicts		: 1
0.54/0.49	c decisions		: 436
0.54/0.49	c propagations		: 1045
0.54/0.49	c inspects		: 1045
0.54/0.49	c learnt literals	: 0
0.54/0.49	c learnt binary clauses	: 0
0.54/0.49	c learnt ternary clauses	: 0
0.54/0.49	c learnt clauses	: 0
0.54/0.49	c ignored clauses	: 0
0.54/0.49	c root simplifications	: 0
0.54/0.49	c removed literals (reason simplification)	: 0
0.54/0.49	c reason swapping (by a shorter reason)	: 0
0.54/0.49	c Calls to reduceDB	: 0
0.54/0.49	c number of reductions to clauses (during analyze)	: 0
0.54/0.49	c number of learned constraints concerned by reduction	: 0
0.54/0.49	c number of learning phase by resolution	: 0
0.54/0.49	c number of learning phase by cutting planes	: 0
0.54/0.49	c speed (assignments/second)	: 9330.357142857143
0.54/0.49	c non guided choices	436
0.54/0.49	c learnt constraints type 
0.54/0.49	c constraints type 
0.54/0.49	c org.sat4j.pb.constraints.pb.OriginalHTClausePB => 35
0.54/0.49	c org.sat4j.pb.constraints.pb.MinWatchCardPB => 30
0.54/0.49	s UNSATISFIABLE
0.54/0.49	c Total wall clock time (in seconds): 0.277

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-2661315-1276581807/watcher-2661315-1276581807 -o /tmp/evaluation-result-2661315-1276581807/solver-2661315-1276581807 -C 1800 -W 2000 -M 1800 java6 -server -Xmx1350m -Xms1350m -jar HOME/sat4j-pb.jar CuttingPlanes HOME/instance-2661315-1276581807.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 1119
/proc/meminfo: memFree=1694636/2059040 swapFree=4140228/4192956
[pid=1119] ppid=1114 vsize=24036 CPUtime=0
/proc/1119/stat : 1119 (runsolver) R 1114 1119 1091 0 -1 4202560 80 0 0 0 0 0 0 0 16 0 1 0 33782438 24612864 106 1992294400 4194304 4302564 140735951167392 18446744073709551615 264367612919 0 2147483391 4096 24578 0 0 0 17 0 0 0 0
/proc/1119/statm: 6009 106 69 27 0 2647 0

[startup+0.076812 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 1119
/proc/meminfo: memFree=1694636/2059040 swapFree=4140228/4192956
[pid=1119] ppid=1114 vsize=1521796 CPUtime=0.05
/proc/1119/stat : 1119 (java) S 1114 1119 1091 0 -1 4202496 3723 0 1 0 4 1 0 0 15 0 7 0 33782438 1558319104 3164 1992294400 134512640 134550932 4294518528 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 0 0 0 0
/proc/1119/statm: 380449 3164 1035 10 0 377759 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1521796

[startup+0.101813 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 1119
/proc/meminfo: memFree=1694636/2059040 swapFree=4140228/4192956
[pid=1119] ppid=1114 vsize=1524184 CPUtime=0.08
/proc/1119/stat : 1119 (java) S 1114 1119 1091 0 -1 4202496 3947 0 1 0 7 1 0 0 15 0 12 0 33782438 1560764416 3386 1992294400 134512640 134550932 4294518528 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0 0
/proc/1119/statm: 381046 3386 1075 10 0 378348 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1524184

[startup+0.300834 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 1119
/proc/meminfo: memFree=1694636/2059040 swapFree=4140228/4192956
[pid=1119] ppid=1114 vsize=1525780 CPUtime=0.34
/proc/1119/stat : 1119 (java) S 1114 1119 1091 0 -1 4202496 5320 0 1 0 32 2 0 0 15 0 12 0 33782438 1562398720 4755 1992294400 134512640 134550932 4294518528 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0 0
/proc/1119/statm: 381445 4755 1359 10 0 378747 0
Current children cumulated CPU time (s) 0.34
Current children cumulated vsize (KiB) 1525780

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

[startup+0.500865 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 1119
/proc/meminfo: memFree=1694636/2059040 swapFree=4140228/4192956
[pid=1119] ppid=1114 vsize=1528612 CPUtime=0.73
/proc/1119/stat : 1119 (java) S 1114 1119 1091 0 -1 4202496 6297 0 1 0 70 3 0 0 15 0 13 0 33782438 1565298688 5653 1992294400 134512640 134550932 4294518528 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0 0
/proc/1119/statm: 382153 5653 1396 10 0 379455 0
Current children cumulated CPU time (s) 0.73
Current children cumulated vsize (KiB) 1528612

Child status: 20
Real time (s): 0.521115
CPU time (s): 0.751884
CPU user time (s): 0.711891
CPU system time (s): 0.039993
CPU usage (%): 144.284
Max. virtual memory (cumulated for all children) (KiB): 1528612

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.711891
system time used= 0.039993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6301
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 131
involuntary context switches= 88

runsolver used 0.004999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node009 at 2010-06-15 08:03:27
IDJOB=2661315
IDBENCH=2600
IDSOLVER=1165
FILE ID=node009/2661315-1276581807
PBS_JOBID= 11173535
Free space on /tmp= 62556 MiB

SOLVER NAME= SAT4J PB CuttingPlanes 2.2.0 2010-05-26
BENCH NAME= PB06/final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/roussel/normalized-pigeon-cardinality-35-30.opb
COMMAND LINE= java6 -server -Xmx1350m -Xms1350m -jar HOME/sat4j-pb.jar CuttingPlanes BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2661315-1276581807/watcher-2661315-1276581807 -o /tmp/evaluation-result-2661315-1276581807/solver-2661315-1276581807 -C 1800 -W 2000 -M 1800  java6 -server -Xmx1350m -Xms1350m -jar HOME/sat4j-pb.jar CuttingPlanes HOME/instance-2661315-1276581807.opb

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

MD5SUM BENCH= a451a3aa708ebb54c76171e0e43da9df
RANDOM SEED=863704662

node009.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		: 3000.199
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	: 6000.39
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		: 3000.199
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	: 5599.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1695156 kB
Buffers:         80960 kB
Cached:         202296 kB
SwapCached:       6120 kB
Active:          92532 kB
Inactive:       203264 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1695156 kB
SwapTotal:     4192956 kB
SwapFree:      4140228 kB
Dirty:             452 kB
Writeback:           0 kB
AnonPages:       10812 kB
Mapped:          12932 kB
Slab:            46264 kB
PageTables:       3992 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181636 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= 62556 MiB
End job on node009 at 2010-06-15 08:03:27